There are 9 Pitts S-2A 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 1974 and 1982.
N19HC
1982 Pitts S-2A
Smithville, OH
N51ST
1981 Pitts S-2A
Ada, MI
N719AP
1981 Pitts S-2A
Pipersville, PA
N187PS
1979 Pitts S-2A
Lees Summit, MO
N28PB
1974 Pitts S-2A
Jefferson, GA
N29KT
Pitts S-2A
Rialto, CA
N450GM
Pitts S-2A
Rincon, GA
N49BR
Pitts S-2A
Santa Paula, CA
N73CF
Pitts S-2A
Beaverton, OR