Materials created by Lillian Bonham including diaries, artwork, and correspondence. Content primarily pertains to her relationship with Sadakichi Hartmann and their family.

Sadakichi Hartmann (1867-1944) was a writer, poet, dramatist, and critic during the early 20th century. Hartmann was an important figure in early modernism and had a diverse social circle that included Walt Whitman, Ezra Pound, and John Barrymore. This collection includes Hartmann's published works, unpublished manuscripts, correspondence, photographs, pastels, paintings, and diaries.