Collection contains reproductions of journals and correspondence of Le Roy and Simeon Boyce and Elisabeth Boyce Gilbert, in addition to a family tree, genealogical information, and biographical sketches of the Boyce and Gilbert families.

Le Roy Boyce's journals and correspondence discuss the pharmacy business, Chicago real estate, health conditions, and family events and concerns. Simeon Boyce's diaries discuss his years at Yale, including many descriptions of various societies and their rituals, scores of regattas against Harvard, and descriptions of social and academic events. As Boyce visited Ithaca, New York frequently to see his grandmother and extended family, he describes the founding, early campus, and events pertaining to Cornell University. Additionally, Boyce's diary includes several passages dedicated to describing and mapping the damage of the Chicago Fire in 1871 which destroyed his commercial property. Elizabeth Boyce Gilbert's journal contains details of her time at Vassar College, her social engagements there, and her travels back home to Chicago. Additionally, her later journal describes her life as a wife and mother in Kenilworth, Illinois.

Collection also contains reproduced photographs with watercolor embellishments of the Boyce household at 3735 Grand Blvd. by Helen Boyce circa 1900.