Map of the march and wagon road of Lieutenant Colonel Cooke from Santa Fe to the Pacific Ocean circa 1846-1847. The map contains minimal topographical data about the area around the wagon road and a table of distances.

Letter from C. E. Detmold in New York to Edward Trelawny at Putney Hill near London. It discusses his fears for Thomas Falconer's safety as he has heard that the "Texian" Santa Fe Expedition had been captured by Mexican forces and touches on British Whig finance politics. Detmold is Christian Edward Detmold (see Wikipedia article) and Trelawny is John Edward Trelawny the English biographer, novelist, adventurer and friend of the Romantic poets Percy Bysshe Shelley and Lord Byron.

Copy of a letter from Galveston, discussing Thomas Falconer's affairs and reassuring the recipient that Falconer's silence in response to six letters is because he has been captured with the Santa Fe Expedition. It also discusses the terms of a sum of money Falconer drew and a term set by Messrs. Meyer & Co. (written as "& Sons" earlier in document) and gives a brief summary of how he joined the expedition. There are notes on cities and dates on the back page.