50A-1009 John Koenke
50A-1069
50A-1086 Ron Dow (Colson)
50A-1104 Dan Bailey
50A-1120
50A-1168 Gene Bollmeier (D-165 )
50A-1169 Ron Dow (Schwinn S8)
50A-1189 Rollie Hilger (Schwinn S8)
50A-1236
50A-1237 Ron Dow
50A-1238
50A-1248 Gary Arnold
50A-1257 Ron Dow (Elgin)
50A-1294 Joe Cole (Schwinn)
50A-1295 John Stansbury (Monark S/T)
50A-1303 Dave Bagne
50A-1319
50A-1323 Ron Dow
50A-1327 Ron Dow (Schwinn)
50A-1377
50A-1386 Fred Trout (Schwinn)
50A-1387 John Stansbury (Schwinn S8)
50A-1391 Warren Pool
51A-1412 Ron Dow (D-165 clone, oldest 51A engine known)
50A-1417 Ron Dow (D-165)
51A-1507
51A-1567 Jerry Mahoney
51A-1568 Warren Pool
51A-1570 Warren Pool
51A-1593 John Stansbury
51A-1603 Gene Bollmeier
51A-1604 Don Dungan (D-165)
51A-1610 Warren Pool
51A-1614 Gene Bollmeier
51A-1619 John Koenke
This list is several years out-of-date. Many machines have been sold to others, more undoubtedly located. If you know of an addition or ownership change, please let me know. Thanks, Ron
