There are 6 Maule M-4C 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 1966 and 1973.
N40694
1973 Maule M-4C
Boulder, CO
N9858M
1967 Maule M-4C
Guthrie, OK
N9841M
1966 Maule M-4C
Memphis, MO
N9845M
1966 Maule M-4C
Stewartville, MN
N9838M
Maule M-4C
Ford City, PA
N9850M
Maule M-4C
Prineville, OR