Capt. Iles, charged with delivery of Col. Taylor's letter of June 13, 1832 to Gen. Atkinson, probably leaves Dixon's Ferry this morning for Illinois River. On 12th Gen. Atkinson moved his headquarters from Ottawa to Fort Wilbourn, recently erected near Crosiar's ferry on south side of Illinois River at foot of rapids. Fort is one and one-half miles below Little Vermilion River at head of steamboat navigation.IHi—BHWC, Taylor to Atkinson, 13 June 1832; Johnston Journal, 12 June 1832; Sangamo Journal, 28 June 1832; John M. Peck, A Gazetteer of Illinois (Jacksonville, IL: Goudy, 1834), 219.