There are 5 Maule M-7-420AC 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 2001 and 2007.
N402BW
2007 Maule M-7-420AC
Port Orange, FL
N420WP
2002 Maule M-7-420AC
Michelstadt
N123MG
2001 Maule M-7-420AC
Columbus, OH
N1211M
Maule M-7-420AC
Wilmington, DE
N420BP
Maule M-7-420AC
Moultrie, GA