The decade saw the competition for the Ohio Valley between the British and French intensify. The Lewis Evans map of 1749 was in some ways a propaganda device to alert government officials to the importance of the lands beyond the mountains.

York County (county seat at York) was created in 1749, making five counties.

	1740.1 A MAP OF PARTS OF THE PROVINCE OF PENNSYLVANIA AND MARYLAND WITH THE COUNTIES OF NEWCASTLE, KENT, AND SUSSEX ON DELAWARE ACCORDING TO THE MOST EXACT SURVEYS YET MADE. DRAWN IN THE YEAR 1740. This map by Benjamin Eastburn appears in the Breviate used by the Penns in the Maryland boundary dispute. It was made to show the various surveys and land claims made up to that time, and is another version of the 1739 map. The full Breviate is in the Pennsylvania Archives Second Series, volume 16, where this image came from. See Phillips, page 672.
	1740.2 DIE GROS-BRITANNIS CHE COLONIE-LAENDER IN NORD-AMERICA, IN ACCURATEN SPECIAL-MAPPEN NACH DEN LONDON. ORIGINALIEN GETREULICH MITGETHEILT UND HER AUFS GEGEBEN VON HOMAENIFCHEN ERBEN. B. NEW ENGELLAND, NEW YORK, NEW YERSEY, UND PENSILVANIA, by Homann Heirs c1740-60 (McCorkle #740.1). The date of this map is uncertain, and McCorkle dates it circa 1740. The first part of the title is in a banner at the top and the second part in a box at right. Delaware is part of Pennsylvania and not named. Longitude is measured east from the Ferro meridian. This map is one part (B) of four issued as a larger sheet of regional maps of the coastline. The original four panel map (20 x 27 inches) from which this map comes is dated c1750 in Portinaro & Knirsch and c1763 in Van Erman, and has the major title DOMINIA ANGLORUM IN AMERICA SEPTENTRIONALI. The complete map is from Grosser Atlas Nurembeg 1737, exists in several later states, and the originals for each of the four maps appeared in Herman Moll's Atlas Minor, London 1729 per Cumming. Phillips, page 578, lists the map as from Atlas Geographicus Major Fol. Nurembegae 1759. Several states of this map are discussed at MapForum.Com , Issue 15. Blank verso. Scale: 1 inch = 60 miles. Size: 10 x 12 inches.
	1740.3 (Maryland & Pennsylvania) A manuscript map with the inscription "map delvd to ye counsellor attny gen soltr geni & wills in ye case w l. balt" on the reverse side. It is a map related to the Maryland boundary suit very similar to the 1732 Senex map with the note possibly in the hand of John Fernando Paris, the Penn lawyer. The map is #24_A5 in the Maryland State Archives dated circa 1740's.
	1740.4 CARTA GEOGRAFICA DEL CANADA NELL AMERICA SETTENTRIONALE, by Giambattista Albrizzi, Venice 1740. This map shows the northeast up to Hudson Bay and west to cover all the Great Lakes, apparently based upon the French maps of D'Anville and Delisle. This map of the northeast was seen as a sale listing and is not in McCorkle. The eighteenth century Italian, Spanish, and Portuguese mapmakers tend to be neglected in English language cartobibliographies which concentrate on English, Dutch, and French maps. This map is from Giralamo Albrizzi's two volume circa 1740 Atlante Novissimo.
	1740.5 CARTE PARTICULRE D'UNE PARTIE DE LA BELLE RIVIERE, by Mandeville de Lery, 1740, a manuscript map in French archives (see Docktor #240L5). The Ohio River all the way to the Mississippi is shown.
	1741.1 CHARTE VON DEM ENGELLAENDISCHEN U. FRANZOESISCHEN BESITZUNGEN IN NORD AMERICA, AU FINDEN IN LEIPZIG BEY JOH. GEORGE SCHREIBERS. This map covers the entire east coast, and the Great Lakes are quite accurately shown with modern names. Schreibers died in 1745 and this map probably comes from the Atlas Selectus.... published in 1741 and 1749 in Leipzig (Lister). McCorkle (#756.15) dates it to 1756 but it likely dates earlier. Pennsylvania extends to Lake Ontario, and Philadelphia, Derby, and York are shown along with several Indian towns. Longitude appears to be east from Ferro. Blank verso. Scale: 1 inch = 300 miles. Size: 7 x 9.5 inches.
	1741.2 A MAP OF THE BRITISH EMPIRE IN AMERICA WITH THE FRENCH, SPANISH AND HOLLANDISH SETTLEMENTS ADJACENT THERETO BY HENRY POPPLE AT AMSTERDAM PRINTED FOR I. COVENS AND C. MORTIER. In 1741 Covens and Mortier reduced the 1733 Popple map from 20 sheets to 4 which could be sold together (McCorkle 741.2) or separately (McCorkle 741.3, the index map). Eastern Pennsylvania appears on the northeast map and the western part of the state on the midwest map. There was a French edition (McCorkle #741.4) where the upper right northeast coast map is titled NOUVELLE CARTE PARTICULIERE DE L'AMERIQUE OU SONT EXACTEMENT MARQUES LE NOUVELLE BRETAGNE, LE CANADA OU NOUVELLE FRANCE, LA NOUVELLE ECOSSE, LA NOUVELLE ANGLETERRE, LA NOUVELLE YORK, LA PENSILVANIE, MARY-LAND, LA CAROLINE SEPTENTRIONALE L'ILE DE TERRE NEUVE, LE GRAND BANC. &C. The French edition of the midwest map which includes western Pennsylvania is titled NOUVELLE CARTE PARTICULIERE DE L'AMERIQUE OU SONT EXACTEMENT MARQUEES, UNE PARTIE DE LA BAYE D'HUDSON, LE PAYS DES KILISTINONS, LA SOURCE DE LA GRANDE RIVIEREE DE MISSISSIPI, LE PAYS DES ILLINOIS &C.
	1741.3 (Northeast) McCorkle (#741.1) lists an untitled map of the northeast coast of uncertain date in the Bodleian Library. The coastline is shown from Maine to Cape Hatteras with an inset continuing the coast to Florida, and another inset of Charleston harbor. A reproduction of the map appears on the cover of Historical Atlas of the United States, from the National Geographic Society 1988, who date it circa 1730 based on Georgia being named. Philadelphia, Chester, and Pennsbury are named in Pennsylvania.
	1742.1 A MAP OF THE BRITISH PLANTATIONS CANADA FLORIDA &.C. The notation "25, p. 242" is across the top. McCorkle (742.1) identifies this map as from Johann Huebner’s A New and Easy Introduction to Geography, London 1742 and later editions. John Lodge Cowley translated the orginal book into English from high Dutch and added a set of maps. Many of the maps bear the signature of Emanuel Bowen, although this one does not, and he may well have engraved all of them as they follow a common format, though varying in size. This copy comes from an edition published London 1753 by Thomas Cox and James Hodges. The map shows the British settlements in the eastern United States with regions including Florida, Louisiana, Carolina, Maryland, Virginia and New Mexico. Lake Michigan is identified as Ilinese, and Lake Superior as Upper Lake. 'Pensilvania' and Philadelphia are named. The book itself was originally written as a teaching aid for students by Johann Huebner, a German/Dutch scholar. Intaglio print, blank verso, longitude west from London. Scale: 1 inch ~ 585 miles. Size: 4.25 x 5.25 inches.
	1742.2 DELAWARE RIVER BETWEEN PHILADELPHIA AND NEW JERSEY, July 1742. This manuscript map was found listed as #21 in the map archives of the American Philosophical Society in the papers of Timothy Horsfield, who is believed to have made it. He was a Justice of the Peace at Bethlehem, Pennsylvania, and active in fighting the Indians in 1756. He worked closely with Benjamin Franklin and the government at Philadelphia.
	1743.1 VIRGINIA, MARYLAND, PENNSILVANIA, EAST & WEST NEW JARSEY. by John Thornton and William Fisher, from The English Pilot, The Fourth Book, London. This map is a reengraving of the 1689 map of the same title. It was made for a new 1743 edition of The English Pilot. The first state of 1689 is reproduced in Papenfuse & Coale, and the map from the second edition of The Fourth Book published in 1698 (State 2) is reproduced in Stephenson & McKee. It includes southeastern Pennsylvania with names of settlements along the Delaware River, such as 'Philadelphia City'. Verner records 5 states of the original map, 2 states of this new engraving first published in 1743, and a pirated plate appearing in 1749 and 1767. Sellers & van Ee (#719-20) lists copies appearing in The English Pilot up to 1789.
	1743.2 PLAN OF A TRACT OF LAND BELONGING TO LAWRENCE GROWDEN AND LANGHORNE BILES. Situate in the county of Bucks as the same was divided into lots. Nicholas Scull. 11 November 1743. This manuscript map was found listed as #15 in the map archives of the American Philosophical Society in the papers of Benjamin Franklin.
	1744.1 A NEW AND ACCURATE MAP OF LOUISIANA WITH PART OF FLORIDA AND CANADA, AND THE ADJACENT COUNTRIES, by Emanuel Bowen. An English view of North America compiled from available French maps, especially those of Bellin used in Charlevoix's History of New France. English cartographers had little direct knowledge of the interior at this time, receiving practically no information from the English colonies confined to the seaboard. The French were the ones actively exploring the Mississippi River and its tributaries and English cartographers like Bowen copied their maps. This is a direct steal from the Bellin map below. Image from the Heritage Map Museum CD by permission.
	1744.2 CARTE DE LA LOUISIANE COURS DU MISSISSIPI ET PAIS VOISINS DEDIEE A M. LE COMTE DE MAUREPAS, MINISTRE ET SECRETAIRE D'ETAT COMMANDEUR DES ORDRES DU ROY. PAR N. BELLIN INGENIEUR DE LA MARINE. 1744. This map by Jacques Nicolas Bellin is from Charlevoix's Histoire et description...de la Nouvelle France, Paris 1744 (McCorkle 744.1). There is a Lake Maurepas in Louisiana. A German version of this map was also published in Reisen zu Wasser und zu Lande, Leipzig 1744, titled KARTE VON LUISIANA, DEM LAUFE DES MISSISSIPI UND DEN BENACHBARTEN LAENDERN. This image shows the eastern half from the German version. At the Library of Congress, the complete map can be seen which shows the eastern United States west to well beyond the Mississippi. Blank verso, longitude west from Paris. Scale: 1 inch = 97 miles. Size: 15.5 x 21.5 inches.
	1744.3 CARTE DES LACS DU CANADA. This map by Jacques Nicolas Bellin is from Charlevoix's Histoire et description...de la Nouvelle France, Paris 1744, and accompanies Map 1744.2 listed above. It shows the Great Lakes region from Superior to Ontario and includes the northern part of Pennsylvania below Lake Erie, but the state is not named. See Phillips page 571. This image is from the National Archives of Canada.
	1744.4 A NEW AND ACCURATE MAP OF NEW JERSEY, PENSILVANIA, NEW YORK AND NEW ENGLAND, WITH THE ADJACENT COUNTRIES, by Eman. Bowen (McCorkle #744.4) from his Complete system of geography. A view of the Northeast from the Chesapeake Bay to the Bay of Fundy. Delaware is part of Pennsylvania and New Jersey is divided into East and West. The St. Lawrence River is shown emerging from an enormous Lake Ontario. This map gives an idea of how accurate the English mapmakers could be when showing the coast, and how inaccurate when showing the interior. In Pennsylvania; the names of Bucks and Philadelphia counties appear and Chester is down as Derby County, although the name Chester appears in smaller letters. At the Library of Congress the map is dated 1747 and can be seen in more detail. This map also appeared in Bowen's A complete atlas, London 1752. Scale: 1 inch = 35 miles. Size: 14 x 17 inches.
	1744.5 A NEW MAP OF PART OF NORTH AMERICA..., by Joseph La France, a French Canadese Indian who travaled thro those Countries and Lakes for 3 years from 1739 to 1742 (McCorkle #744.5). This map of eastern Canada extends south to forty degrees but just barely includes Lake Erie and hence Pennsylvania. The state is not identified although New York is named. The map appears in An account of the countries adjoining to Hudson's Bay by Arthur Dobbs, published in 1744. The map is also shown in Cumming et al Exploration of North America.
	1744.6 NEU ENGELAND, NEU YORK, NEU IERSEY, UND PENSILVANIEN &C. von: H. Moll Geograph. This map is from the German publication Das Britische Reich in America, Lemgo 1744; and contains the German edition of Herman Moll's earliest map of New England, originally appearing in John Oldmixon's The British Empire in America in 1708 (see map 1708.1). The map has the same detail as the earlier version with place names in a mixture of English and German. New York is a narrow strip along the Hudson River and New Jersey is divided into East and West. Pennsylvania is restricted to the area between the Delaware and Susquehanna rivers and its boundary includes the future state of Delaware. Note the location of the “Sasqahana” Indian Fort. McCorkle #744-6. Blank verso with longitude apparently east of Ferro. Scale: 1 inch = 50 miles. Size: 7 x 10 inches.
	1745.1 (Northeast) Detail of Pennsylvania from an untitled map of New France circa 1745 by Reiner Ottens. This map does not have a title and only the region around Pennsylvania is shown here. Ottens was Dutch and this is a copy of de Fer's 1719 French map which had its title in a strip across the top, missing on this map. Some other minor changes have been made. This map was intended for a French audience and the English colonies were added in along the coast with no accuracy. Pennsylvania is shown extending only as far as the Allegheny Mountains, which was correct from the French point of view. This image is from a modern reproduction.
	1745.2 PARTIE OCCIDENTALE DE LA NOUVELLE FRANCE OU CANADA, Par Mr. Bellin Ingenieur de la Marine 1745. This map by Jacque Nicolas Bellin shows the entire Great Lakes region, which all belongs to the French, of course. Pennsylvania is located very near the coast and Philadelphia is named, but not much else. There is a 1755 version of this map also, shown here from the National Archives of Canada. McCorkle (#745.1, #755.5) lists the companion map 'Partie Orientale...' which shows New England, but not the Pennsylvania region. Johnson (1974) has a large reproduction of this Great Lakes map.
	1746.1 A MAP OF NORTH AMERICA AS FAR AS RELATES TO THE ENGLISH SETTLEMENTS taken from the Sieur Bellin 1746. It is a stretch to include this map as it extends south to 10 degrees and includes the Caribbean; however, it is included in McCorkle (#746.1,2). The entire east coast from Labrador to beyond the Mississippi is shown, but most of the map is blank space and it is crude for this late a date. It was published in The Importance and Advantage of Cape Breton by William Bollan, London 1746. There was also a Dutch edition, both illustrated in McCorkle.
	1747.1 A MAP OF THE FRENCH SETTLEMENTS IN NORTH AMERICA BY THOS. KITCHIN GEOGR., LONDON MAG: FOR DECR. 1747. This small map from London Magazine (McCorkle #747.1) shows the eastern United States, southern Canada, and the Great Lakes, which the English are finally beginning to get about right. Pennsylvania is identified, that's all. State (or colony) boundaries are not shown. The coverage extends past the Mississippi and several Indian tribes are named. Longitude west from London, blank verso. Scale: 1 inch = 210 miles. Size: 6.75 x 7.25 inches.
	1747.2 MAP NO. I NOTE THAT...., engraved & printed by James Turner near the Town House Boston and attributed to Lewis Evans and James Alexander. Following 'note that' is a list of place names. This map (McCorkle #747.3) shows the coast from Cape Cod to Hatteras. 'Pensilvania' and Philadelphia are named but there is no other detail. The map is illustrated in Pritchard & Taliaferro #28, Wheat & Brun #294.
	1747.3 A NEW AND ACCURATE MAP OF VIRGINIA & MARYLAND : LAID DOWN FROM SURVEYS AND REGULATED BY ASTRONL OBSERVAT.NS BY EMAN. BOWEN, published by William Innys. This is a map of the Chesapeake Bay and includes only a thin strip of southern Pennsylvania, which is named but with nothing identified. It is Map #247B5 in the Maryland Archives, which has an image of a 1752 edition and provides an excellent discussion of the map. It is a later version of Moll's 1708 original and can be seen in Papenfuse & Coale; and also at the Darlington Library.
	1747.4 COAST OF NORTH AMERICA FROM CAPE HATTERAS TO BOSTON HARBOR. 1747. This map was found listed as #750 in the map archives of the American Philosophical Society . The cartographer is thought to have been Lewis Evans; the engraver was James Turner. The map appears in Board of general proprietors of the eastern division of New Jersey. A bill in the chancery of New-Jersey, following p. 124.
	1748.1 NOUVELLE ANGLETERRE N. LLE YORK NLLE. JERSEY PENSILVANIE MARILAND ET VIRGINIE PAR LE SR. ROBERT DE VAUGONDY FILS DE MR. ROBERT GEOGR. ORDIR. DU ROI AVEC PRIVILEGE 1748. There are two otherwise identical versions of this map, 1748 and 1749 which is the one shown here (McCorkle #748.1, #749.6). It appears in various editions of Atlas Portatif..., published in Paris by Durand 1748 on. The map shows the coast from Maine to Virginia and west to the Allegheny Mountains. The English colonies are confined to the coast with the land beyond the mountains Louisiane. Chester and Philadelphia are shown and some Indian villages along the Susquehanna. Longitude appears east of Ferro. Blank verso. Scale: 1 inch = 95 miles. Size: 8 x 7 inches.
	1749.1 A MAP OF PENSILVANIA, NEW JERSEY, NEW YORK, AND THE THREE DELAWARE COUNTIES by Lewis Evans, MDCCXLIX. L. Hebert Sculp. This may be the first map of Pennsylvania published in America. Evans followed this map with his more famous one of 1755, but this is an iconic map of the middle Atlantic and much copied, with English, German, and other editions. The county of Lancaster was created in 1729 and is shown along with the founding counties of Philadelphia, Bucks and Chester. York County, created in 1749, is not shown although the town appears. This map originated the phrase 'Endless Mountains' which is still used as an advertising slogan. The coverage of Pennsylvania ends just beyond the Susquehanna. This image is from the Library of Congress where a 1750 German version can also be seen. Gipson reproduces all of Evans' important maps along with some of his writings. Listed in Phillips, page 672, Wheat & Brun No. 295-97.
	1749.2 A CHART OF THE SEA COAST OF NEW FOUND LAND, NEW SCOTLAND, NEW YORK, NEW JERSEY with VIRGINIA and MARYLAND and NEW ENGLAND, sold by George Grierson at the two Bibles in Essex Street Dublin (McCorkle #749.2; Sellers & van Ee #199, 200). This sea coast map appears in The English Pilot, The Fourth Book of 1698 and this is a pirated copy.
	1749.3 LES LACS DU CANADA ET NOUVELLE ANGLETERRE PAR LE SR. ROBERT DE VAUGONDY FILS DE MR. ROBERT GEOG. ORDIN. DU ROI AVEC PRIVILEGE 1749. Another map (McCorkle #749.5) from Atlas Portatif, this one shows the Great Lakes based upon the 1744 Bellin map. Pennsylvania and Philadelphia are named. Blank verso. Scale: 1 inch = 150 miles. Size: 6.5 x 8.5 inches.
	1749.4 CARTE D'UN VOYAGE FAIT DANS LA BELLE RIVIERE ENLA NOUVELLE FRANCE M DCC XLIX, by Father Joseph Pierre de Bonnecamps. In 1749 the French sent Celoron de Blainville down the Allegheny and Ohio Rivers as a show of force to the British. Blainville buried lead plates at major river junctures along the way as proof of French ownership. Bonnecamps accompanied the expedition and prepared this manuscript map which is now at the Bibliotheque Nationale in Paris. It shows 'Lac' Ontario and Erie and the route down the Allegheny, the Ohio, up the Great Miami River and then down the Maumee back to Lake Erie. Bonnecamps' journal and map appear in the Jesuit Relations and the map is reproduced in Smith's Mapping of Ohio and in Hanna, which is the image shown here.
	1749.5 (Southeastern Pennsylvania) A manuscript map dated Aug. 2 1749, accompanying Indian Deed for Lands between Delaware and Susquehanna, 1749, indicated by "Map or Draught hereunto annexed." This facsimile of a land deed map is in Series 1, Volume 2, of the Pennsylvania Archives; presumably the original is held in the Land Office archives. The map shows southeastern Pennsylvania and the strip of land extending to the Susquehanna that is being purchased. This is probably the map listed in Docktor #249S5.