There are 6 Beechcraft B-99 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 1968 and 1974.
N950AA
1974 Beech B-99
Provo, UT
N4299A
1971 Beech B-99
Boca Raton, FL
N20FW
1969 Beech B-99
Boca Raton, FL
N21FW
1969 Beech B-99
Boca Raton, FL
N34AK
1969 Beech B-99
Boca Raton, FL
N699CZ
1968 Beech B-99
Milwaukee, WI