Mary Ann Rocque

[4] In 1751 she married cartographer John Rocque, her brother's mentor,[5] who held the titles "Chorographer to the Prince of Wales" and "Topographer to His Royal Highness the Duke of Glouchester".

[2] Another French cartographer in London, Louis Stanislaus de la Rochette, was married to her sister, Margaret.

[8] In widowhood, Mary Ann Rocque took over her husband's Topographer title and carried on the family business in the Strand, going into partnership with Andrew Dury.

[14] In 1763, she published a new edition of her husband's The Environs of London Reduced from an Actual Survey in 16 Sheets, with a dedication "to the Right Honorable George Montague Earl of Cardigan, Baron Brudenell &c."[15] In 1765, she published A Set of Plans and Forts of America, a compilation atlas booklet consisting of thirty plans of forts and locales that had played important roles in the recently concluded French and Indian War; the atlas also included a small Plan of the City of Albany, which among other things showed the location of Fort Frederick along the city’s northwest edge.

[1] A Set of Plans and Forts of America were described by academic researcher Will C. van den Hoonaard as "a paean to British victory and a celebration of the enlarged empire".