There are 13 Waco UBF 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 1932 and 1933.
N13071
1933 Waco UBF
Babylon, NY
N13074
1933 Waco UBF
Montevideo, MN
N13075
1933 Waco UBF
Bend, OR
N13419
1933 Waco UBF
Southlake, TX
N13444
1933 Waco UBF
Oklahoma City, OK
N13446
1933 Waco UBF
Beverly, MA
N12443
1932 Waco UBF
Wahpeton, ND
N1244G
1932 Waco UBF
Tampa, FL
N13027
1932 Waco UBF
Hood River, OR
N13442
1932 Waco UBF
Owls Head, ME
N155Y
1932 Waco UBF
Hallettsville, TX
N2091K
1932 Waco UBF
Ellsinore, MO
N12002
Waco UBF
Bell Buckle, TN