There are 8 Waco INF 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. The ones listed here were built between 1930 and 1931.
N11260
1931 Waco INF
Collinsville, TX
N11267
1931 Waco INF
Waterville, OH
N11466
1931 Waco INF
Sitka, AK
N11203
1930 Waco INF
Greenfield, IN
N618Y
1930 Waco INF
Red Hook, NY
N619Y
1930 Waco INF
Hood River, OR
N648Y
1930 Waco INF
Chuckey, TN
N864V
1930 Waco INF
Mount Pleasant, TX