Letter from Gilpin, written from Fort Leavenworth, to Kane, regarding the possibilities of Kane overtaking those heading for California and Oregon, dated June 29, 1846.

Letter from Breese, written in Washington, D.C. to William E. Matlock, Nauvoo, Illinois, dated June 8, 1846. Includes an envelope.

Letter from Kane reporting the various stories circulating around Philadelphia, Pennsylvania concerning Kane's relationship with the Mormons, dated July 1846.

Letter draft from Kane stating that he will abandon his design to go to California if he is unable to overtake "the rearmost party of California emigrants between this place and Fort Laramie", Undated.

Letter from T.R. Peale, written in Washington, D.C. to Kane, Philadelphia, Pennsylvania, sending Kane 3 letters that may be of use to him in California, and asking him to find Ephriam Travel if he goes to San Jose, California, dated May 30, 1846.

Letter from Leiper, written from Philadelphia, Pennsylvania, to Kane, Fort Leavenworth, expressing his desire for Kane to visit "Buffalo country" before coming home, and stating that he gave Colonel Boon Kane's name and that Boon is a friend of Colonel Campbell's, dated July 10, 1846.

Letter from Leiper, written in Philadelphia, Pennsylvania, to Kane, Council Bluffs, Iowa, stating that he is sending a letter with Colonel Campbell, and that the family is all well, dated August 6, 1846.

Letter from Robert Campbell per William Campbell, written in St. Louis, Missouri, to Kane, enclosing two letters for Kane, possibly from home, dated August 15, 1846.

Receipt of payment from Kane to Boulwane for a bay horse. Dated June 29, 1846.

Statement by Mitchell, at Point aux Poules affirming the good behavior of the Mormon pioneers. Also includes a handwritten copy of above statement from Mitchell, Council Bluffs, plus the permission of the Pottawatomie Indians. Dated July 21, 1846.