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The Seven Years War (1756-63)

Manuscript and printed maps and views, correspondence and journals from the first global war

? THOMAS JEFFERYS (C. 1719-71)

Map of Monongahela River, 1755 (Monongahela River, Pennsylvania, USA)

1755 or later

Etching and engraving; hand-coloured | Scale: 1:760,320 approx. | RCIN 731061.a

A map of the country between Will's Creek and the Monongahela River showing the encampments and route of the British army, 1755. French and Indian War (1754-63). Oriented with north to top (cardinal points).

One of six plans of Braddock's marches, camps, and campaign in 1755 (see RCINs 731061.a-f). These maps are closely based on the manuscript maps of the same titles in 'A Journal of the Expedition to North America in 1755, under General Braddock'; BL King's MS 212. The Fort Cumberland referred to in this set of plans was in Maryland (39°39'03"N 78°45'55"W). It was the westernmost outpost of British territory in North America and was the point of departure for General Edward Braddock's (bap.2 February 1695-13 July 1755) march to Fort Duquesne (40°26'29"N 80°00'39"W).

  • ? Thomas Jefferys (c. 1719-71) (publisher)

    ? Robert Orme (1725-90) (cartographer)


  • Watermark: Fleur-de-lys

    Condition: no fold lines; induced discolouration on verso; pin holes in each corner. Formerly kept in a rough buff/grey paper folder with old heading on front

  • Scale: 1:760,320 approx. Scale bar: Scale of English Miles [66 mm =] 30.

    29.0 x 19.0 cm (neatline)

    32.7 x 20.4 cm (image)

    34.0 x 22.1 cm (platemark)

    37.3 x 24.5 cm (sheet)

  • Printed title:

    A Map of the Country between Will’s Creek & Monongahela River / Shewing the Rout and Encampments of the English Army in 1755. [top, outside neatline]

    Additional text:

    [bottom right, a key, 1-19, to the locations of the encampments:] REFERENCES to the Encampments.


    George III heading: Encampments and March from Fort Cumberland to the Monongahela River in 1755.

    Other annotations: (Recto) [top, black pencil, erased and partly legible:] Monongahela; [bottom, black pencil, erased:] XV/1. (Verso) None.

    George III catalogue entry:

    Encampment A Map of the Country between Fort Cumberland on Will’s Creek and the Monongahela River shewing the Rout and Encampments of the English Army in 1755; with five particular Plans of the Disposition of the Army on its March, the Encampments &c. [The same entry appears under the headings Cumberland, Fort, March, and Monongahela.]

  • Subject(s)

    Monongahela River, Pennsylvania, USA

Page revisions

  • 6 June 2024