Jane's Encyclopedia of Aviation
Smith DSA-1 Miniplane (USA)
Single-seat sporting biplane, plans for which are available to amateur constructors.
Smith DSA-1 Miniplane built in Canada by Don Wooley
Smith Miniplane (65 hp Continental engine) built by Duard Suby
Miniplane (125 hp Lycoming O-290-G) built by Robert Griffith and Al Neunteufel
Smith DSA-1 Miniplane built by Mr L.A.Chenowath
Forbes-Wolfram Special, a single-seat racing biplane derived from the Smith DSA-1 Miniplane
Wikipedia