There are 6 Piper L-21A 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 1951 and 1959.
N6482D
1959 Piper L-21A
Chandler, AZ
N10593
1958 Piper L-21A
Crestline, CA
N555Z
1952 Piper L-21A
Winter Garden, FL
N20CM
1951 Piper L-21A
Harper, TX
N949FS
1951 Piper L-21A
El Paso, TX
N6408D
Piper L-21A
Pleasanton, TX