Both songs have connections to Jefferson Airplane and Crosby, Stills and Nash.
“Triad” was written by David Crosby and first released by Jefferson Airplane in 1967. The Byrds recorded it in 1967 but didn’t release it until 1987. Crosby, Stills, Nash and Young released a live version in 1971.
“Wooden Ships” was written by David Crosby, Paul Kantner, and Stephen Stills in 1968. Crosby, Stills and Nash and Jefferson Airplane both released versions in 1969.