The correspondence is almost exclusively between Ware and William E. Connelley. They discuss their various research and publications, personal and business matters, and on Kansas and national politics.

Most of the correspondence included in this collection is from Stillwell to his father, Jeremiah O. Stillwell. These letters, dating from January, 1863 to the end of December, 1863, relate Stillwell's military experience to his father. Later correspondence, dating from 1898 to 1920, is from various political figures to Stillwell asking for favors, endorsements, or his opinions.

Correspondence, research notes, interviews, manuscript drafts, and photographs, covering the years 1883-1914, from an early Kansas historian.