| 454 | ABELL | Winstone, Glos | All | |||||
| 510 | ABBOTT | Stowford | c1832 | |||||
| 205 | ALLANE | Edinburgh | c1700 | |||||
| 737 | ALLEN (Thomas) | St.Keverne/Wendron/Illogan | All | |||||
| 540 | ALLEN (Thomas) | St. Clements | c1793 | |||||
| 739 | ALLEN | St. Columb Major | 1600-1850 | |||||
| 205 | ALLISON | Edinburgh | 1600+ | |||||
| 661 | AMY | St. Teath | Any | |||||
| 150 | ANDREWARTHA + var. | Breage | All | |||||
| 303 | ARTHERTON | Mattishall, Norfolk | c1800s | |||||
| 028 | ARTHUR | Gwinear | 1700+ | |||||
| 321 | ATHOW (Christopher) | London | 1740-1850 | |||||
| 321 | ATHOW (Florence Mary) | England | 1860-1905 | |||||
| 013 | ATKINS | Launceston | All | |||||
| 013 | ATKINS | Cornwall | All | |||||
| 453 | AUSTEN | Stoke Climsland | Any | |||||
| 378 | AYRES | Bere Alston, Devon | c1800s | |||||