There are 3 Short Bros. & Harland SD3-30 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 1978 and 1985.
N262AG
1985 Short Bros. & Harland SD3-30
West Memphis, AR
N264AC
1984 Short Bros. & Harland SD3-30
Salt Lake City, UT
N323WW
1978 Short Bros. & Harland SD3-30
Wake Forest, NC