| 085 | BADGE | St. Hilary / St. Erth | pre1700s | |
| 085 | BADGE | Scilly Isles | pre1700s | |
| 540 | BAILEY (Loveday) | Stoke Damerel | c1820 | |
| 715 | BANFIELD | Cornwall | 1700+ | |
| 028 | BARNACOT + var. | St. Ervan | 1600-1700 | |
| 051 | BARNES | Oundle, Northants | 1800+ | |
| 495 | BARNES | St. Levan | 1834-1870 | |
| 205 | BARNET | Thanet, Kent | c1767 | |
| 741 | BARNICOTT | St. Ive | c1840s | |
| 563 | BARRETT (Mary Ann) | Kenwyn | c1833 | |
| 028 | BARRIBAL + var. | Altarnun | 1600-1700 | |
| 028 | BASELEY + var. | St. Columb Major | 1600-1700 | |
| 551 | BASELEY | St. Columb / St. Wenn | 19C | |
| 205 | BASS | Southill, Bedfordshire | 1760+ | |
| 570 | BASSETT (Mary) | Mevagissey / St. Ewe | c1800 | |
| 028 | BATE | St. Mabyn | c1700s | |
| 028 | BATE | Blisland | c1700s | |
| 710 | BATH | Trewren | pre1700 | |
| 205 | BATMANSON | Margate, Kent | 1700+ | |
| 592 | BATTEN | Penzance | pre19C | |
| 080 | BAWDEN | Fowey | 19C | |
| 551 | BAZELEY | St. Columb / St. Wenn | 19C | |
| 028 | BEALE | Altarnun | 1700+ | |
| 715 | BECKERLEG | Breage | 1700+ | |
| 520 | BEDDESON + var. | Lostwithiel | 1805-1830 | |
| 445 | BEHANNA | Kea | pre1800 | |
| 510 | BEST | Gerrans | 1750+ | |
| 373 | BEYNON | Gower | All | |
| 645 | BILLING | Padstow | ||
| 510 | BLUETT | North Petherwin | All | |
| 510 | BONDS | Truro/Falmouth | 1700-1850 | |
| 321 | BOYD (William) | Linlithgow | 1600-1850 | |
| 321 | BOYD (William) | Muiravonside | 1740-1821 | |
| 321 | BOYD (William) | Dunfermline | 1800-1900 | |
| 453 | BOYD(E) | Maker | Any | |
| 726 | BRADBORY | Penzance | pre1860s | |
| 205 | BRADFORD | Lidlington, Bedfordshire | 1780+ | |
| 357 | BRAUND | Worldwide | All | |
| 661 | BRAUND | St. Teath | c1800s | |
| 542 | BRAVEN | St. Sampsons | 18-19C | |
| 542 | BRAVEN | Cornwall | 18-19C | |
| 028 | BRAY | Landulph | c1700s | |
| 092 | BRAY | Gwennap | c1834 | |
| 367 | BRAY | Gwennap | 17-19C | |
| 578 | BRAY | St. Teath / Lesnewth | pre1775 | |
| 706 | BRAY | St. Endellion | 1780+ | |
| 551 | BRENTON | St. Wenn | 19C | |
| 205 | BRIANT | High Wycombe | 1600+ | |
| 205 | BRIERS | Waddesdon, Bucks. | 1700+ | |
| 542 | BROAD | St. Neot | 19C | |
| 551 | BROMWELL | Bedford | Any | |
| 303 | BROOKER | Higham, Kent | 1700-1850 | |
| 656 | BROOKING | Gulval | 1750-1800 | |
| 071 | BROWN | Tywardreath | 1700-1800s | |
| 205 | BROWN | Southill, Bedfordshire | 1540+ | |
| 303 | BROWN(E) | Bodmin | 1750-1875 | |
| 205 | BRYANT | Lidlington, Bedfordshire | 1750+ | |
| 205 | BRYSSON | Dalkeith, Scotland | 1600+ | |
| 357 | BUCKINGHAM | North Hill | 1700-1875 | |
| 028 | BUCKLER | Warleggan / St. Neot | 1600-1700s | |
| 303 | BUCKTHOUGHT | St. Columb Major | 1600-1800 | |
| 445 | BUDDLE | Perranzabuloe | 18C | |
| 605 | BUDGE | Linkinhorne | All | |
| 454 | BUFTON | Radnorshire | All | |
| 303 | BUNNY | Tremaine | 1650-1775 | |
| 660 | BUNT | St. Cleer | All | |
| 660 | BUNT | Liskeard | All | |
| 661 | BUNT | St. Teath | c1800s | |
| 028 | BURDON | St. Breock | c1700s | |
| 551 | BURFITT | Mere, Wiltshire | 19C | |
| 028 | BURNARD | Altarnun | c1700s | |
| 028 | BURNETT | Warleggan / St. Neot | 1600-1700s | |
| 147 | BURNETT | Kingsand | 1700-1800 | |
| 205 | BURNHAM | Long Crendon, Bucks. | 1600+ | |
| 367 | BURROWS | Kea / Kenwyn | 17-19C | |
| 728 | BURROWS | Truro | c1870s | |
| 205 | BURT | Lanteglos by Camelford | pre1820 | |