This collection contains materials that belonged to members of the Wistar and Canby families, prominent families in Pennsylvania and Delaware. It consists mostly of diaries, photographs, and personal papers that belonged to members of the extended Wistar-Canby family. Many of the letters and personal papers have to do with family genaological research pursued by William Marriott Canby Jr. Also included in this collection is a baby shirt and cap worn by William Canby in 1748.