There are 3 Sikorsky S-58C 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 1957 and 1958.
N869RB
1958 Sikorsky S-58C
Kematen
N58KK
1957 Sikorsky S-58C
Brewster, WA
N867
1957 Sikorsky S-58C
Brewster, WA