Documents related to the Delaware State Trapshooting Championship, held at various locations throughout state, mainly Wilmington Trapshooting Association in Newark, Delaware and Silver Lake Sportsman's Association in Magnolia, Delaware. Also included are programs from the Grand American Trapshooting Tournament.

The Wilmington Trapshooting Association (WTA) was organized in 1910 and continues to be active today. This collection consists of photographs of members of the Wilmington Trapshooting Association at various events from the early 1900s through the 1980s.

The Wilmington Trapshooting Association was organized in November 1916 with William Highfield (1884-1943) as President, C. Thorpe Martin (1880-1955) as Vice President, E.R. Galvin (dates unknown) as Secretary. The records include minutes, financial ledgers, handbooks, rulebooks, and membership lists.