There are 3 Waco ZGC-7 aircraft on the U.S. registry that TailWiki has a page for. Every one is built from the public FAA record — year, serial, engine, home base, and registration history — and owners and pilots add photos, trips, and stories on top.
N17711
1937 Waco ZGC-7
Maryland Heights, MO
N17725
1937 Waco ZGC-7
Sheridan, AR
N17742
1937 Waco ZGC-7
Gilroy, CA