There are 6 Waco UMF 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 1934 and 1935.
N14627
1935 Waco UMF
Scottsdale, AZ
N13571
1934 Waco UMF
Oklahoma City, OK
N14031
1934 Waco UMF
Lee, NH
N14041
1934 Waco UMF
Troy, OH
N14076
1934 Waco UMF
York, PA
N13894
Waco UMF
Zanesville, OH