There are 13 Beechcraft C18S 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 1942 and 1945.
N67929
1945 Beech C18S
Loudon, NH
N23DF
1944 Beech C18S
Pawcatuck, CT
N44573
1944 Beech C18S
Baudette, MN
N5552A
1944 Beech C18S
Milton, DE
N6047V
1944 Beech C18S
Inver Grove Hgts, MN
N81GB
1944 Beech C18S
Hilton Head Island, SC
N64463
1943 Beech C18S
Springfield, IL
N69044
1943 Beech C18S
Winters, CA
N79MB
1942 Beech C18S
Hillsboro, OR
N1047B
Beech C18S
Anchorage, AK
N218HC
Beech C18S
Kingsford, MI
N4910N
Beech C18S
Brainerd, MN
N9109R
Beech C18S
Siloam Springs, AR