There are 3 Beechcraft C-12C 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.
N200NY
1976 Beech C-12C
Latham, NY
N851EM
1976 Beech C-12C
Los Angeles, CA
N225LH
Beech C-12C
Montgomery, AL