| 1 | I761 | Grenfell, Welmot Father: Grenfell, James Mother: Hattam, Nanny | WELMOT,GRENFELL | GRENFELL,WELMOT | 1870 | 140 | Sandhurst | 3 | 1938 | 72 | 68 | Northcote Sth | F | YES | Y100 | |
| 2 | I911 | Grenfell, Welmot Father: Grenfell, James Mother: Hattam, Nanny | WELMOT,GRENFELL | GRENFELL,WELMOT | 1866 | 144 | At Sea | 0 | 1867 | 143 | 1 | Sand | F | YES | YES | |
| 3 | I2080 | Grenfell, Welmot Father: Grenfell, John Mother: Hosking, Sarah | WELMOT,GRENFELL | GRENFELL,WELMOT | 1850 | 160 | | 9 | 1921 | 89 | 71 | | F | YES | Y100 | |
| 4 | I7147 | Grenfell, William | WILLIAM,GRENFELL | GRENFELL,WILLIAM | | | | 4 | | | | | M | YES | YES | R |
| 5 | I17399 | Grenfell, William | WILLIAM,GRENFELL | GRENFELL,WILLIAM | | | | 1 | | | | | M | YES | YES | R |
| 6 | I2148 | Grenfell, William Father: Grenfell, James Mother: Davey, Caroline | WILLIAM,GRENFELL | GRENFELL,WILLIAM | | | | 0 | | | | | M | YES | YES | |
| 7 | I13612 | Grenfell, William | WILLIAM,GRENFELL | GRENFELL,WILLIAM | | | | 2 | 10 February 1833 | 177 | | St Just in Penwith | M | YES | YES | R |
| 8 | I2139 | Grenfell, William Father: Grenfell, Thomas Mother: Visser, Jane | WILLIAM,GRENFELL | GRENFELL,WILLIAM | 1893 | 117 | | 0 | 1894 | 116 | 1 | | M | YES | YES | |
| 9 | I13611 | Grenfell, William | WILLIAM,GRENFELL | GRENFELL,WILLIAM | | | | 1 | | | | | M | YES | YES | R |
| 10 | I4764 | Grenfell, William Father: Grenfell, Richard Mother: Vine, Margaret Rowe | WILLIAM,GRENFELL | GRENFELL,WILLIAM | 1885 | 125 | St Just in Penwith | 0 | | | | | M | YES | YES | |
| 11 | I1978 | Grenfell, William Father: Grenfell, William Mother: Guy, Jane | WILLIAM,GRENFELL | GRENFELL,WILLIAM | 1869 | 141 | Pendeen | 0 | | | | | M | YES | YES | |
| 12 | I17578 | Grenfell, William Father: Grenfell, Thomas Mother: Trembath, Phillis | WILLIAM,GRENFELL | GRENFELL,WILLIAM | 1847 | 163 | Sancreed | 0 | | | | | M | YES | YES | |
| 13 | I2087 | Grenfell, William Father: Grenfell, John Mother: Carbis, Susanna | WILLIAM,GRENFELL | GRENFELL,WILLIAM | 1858 | 152 | | 0 | 1903 | 107 | 45 | | M | YES | YES | |
| 14 | I17497 | Grenfell, William Father: Grenfell, William Mother: Penrose, Kezia | WILLIAM,GRENFELL | GRENFELL,WILLIAM | 1845 | 165 | Sennen | 0 | | | | | M | YES | YES | |
| 15 | I6976 | Grenfell, William Father: Grenfell, Pascoe Mother: Lathan, Ann Tonkin | WILLIAM,GRENFELL | GRENFELL,WILLIAM | 1837 | 173 | St Just in Penwith | 0 | | | | | M | YES | YES | |
| 16 | I7190 | Grenfell, William Father: Grenfell, Henry Mother: Hocking, Jenefer | WILLIAM,GRENFELL | GRENFELL,WILLIAM | 1844 | 166 | St Just in Penwith | 0 | | | | | M | YES | YES | |
| 17 | I1960 | Grenfell, William Father: Grenfell, Richard Mother: Warren, Jane | WILLIAM,GRENFELL | GRENFELL,WILLIAM | 1835 | 175 | St Just in Penwith | 5 | | | | | M | YES | YES | |
| 18 | I17398 | Grenfell, William Father: Grenfell, William
| WILLIAM,GRENFELL | GRENFELL,WILLIAM | 1832 | 178 | | 0 | | | | | M | YES | YES | |
| 19 | I2518 | Grenfell, William Father: Grenfell, Thomas Mother: Badcock, Elizabeth | WILLIAM,GRENFELL | GRENFELL,WILLIAM | 1834 | 176 | St Just in Penwith | 10 | | | | | M | YES | YES | |
| 20 | I8477 | Grenfell, William Father: Grenfell, Lewis Mother: Matthews, Elizabeth | WILLIAM,GRENFELL | GRENFELL,WILLIAM | 1832 | 178 | Brane | 0 | | | | | M | YES | YES | |
| 21 | I6981 | Grenfell, William | WILLIAM,GRENFELL | GRENFELL,WILLIAM | 1759 | 251 | | 8 | 13 December 1834 | 175 | 75 | | M | YES | YES | R |
| 22 | I7168 | Grenfell, William Father: Grenfell, William Mother: (unknown), Grace | WILLIAM,GRENFELL | GRENFELL,WILLIAM | 1806 | 204 | St Just in Penwith | 0 | | | | | M | YES | YES | |
| 23 | I7162 | Grenfell, William Father: Grenfell, Edward Mother: Wallis, Charity | WILLIAM,GRENFELL | GRENFELL,WILLIAM | 1807 | 203 | St Just in Penwith | 0 | | | | | M | YES | YES | |
| 24 | I17495 | Grenfell, William Father: Grenfell, John Mother: Rowe, Margaret | WILLIAM,GRENFELL | GRENFELL,WILLIAM | 1811 | 199 | Zennor | 1 | July 1891 | 119 | 80 | Penzance (district) | M | YES | YES | |
| 25 | I7169 | Grenfell, William Father: Grenfell, William Mother: (unknown), Grace | WILLIAM,GRENFELL | GRENFELL,WILLIAM | 1811 | 199 | St Just in Penwith | 0 | | | | | M | YES | YES | |
| 26 | I7151 | Grenfell, William Father: Grenfell, William Mother: (unknown), Alice | WILLIAM,GRENFELL | GRENFELL,WILLIAM | 1757 | 253 | St Just in Penwith | 0 | | | | | M | YES | YES | |
| 27 | I2524 | Grenfell, William C Father: Grenfell, William Mother: Austin, Jane | WILLIAM C,GRENFELL | GRENFELL,WILLIAM C | 1859 | 151 | St Just in Penwith | 0 | | | | | M | YES | YES | |
| 28 | I2126 | Grenfell, William Ernest Father: Grenfell, John Mother: McIntosh, Jane | WILLIAM ERNEST,GRENFELL | GRENFELL,WILLIAM ERNEST | 1886 | 124 | | 0 | | | | | M | YES | YES | |
| 29 | I2743 | Grenfell, William Francis Father: Grenfell, Peter Wallis Mother: Vingoe, Hannah Maria | WILLIAM FRANCIS,GRENFELL | GRENFELL,WILLIAM FRANCIS | 1878 | 132 | | 0 | | | | | M | YES | YES | |
| 30 | I15803 | Grenfell, William Henry Father: Grenfell, Jaketh
| WILLIAM HENRY,GRENFELL | GRENFELL,WILLIAM HENRY | 1835 | 175 | | 0 | | | | | M | YES | YES | |
| 31 | I3964 | Grenfell, William Henry Father: Grenfell, John Mother: White, Elizabeth | WILLIAM HENRY,GRENFELL | GRENFELL,WILLIAM HENRY | 1839 | 171 | St Just in Penwith | 0 | | | | | M | YES | YES | |
| 32 | I2098 | Grenfell, William Nicholas Father: Grenfell, Richard Mother: Nicholls, Nanny | WILLIAM NICHOLAS,GRENFELL | GRENFELL,WILLIAM NICHOLAS | 1871 | 139 | Boscaswell | 0 | 9 October 1893 | 116 | 22 | South Africa | M | YES | YES | |
| 33 | I4653 | Grenfell, William Oats Father: Grenfell, Richard Mother: Oats, Mary Susan | WILLIAM OATS,GRENFELL | GRENFELL,WILLIAM OATS | 1890 | 120 | St Just in Penwith | 0 | | | | | M | YES | YES | |
| 34 | I16465 | Grenfell, William Thomas Father: Grenfell, Richard
| WILLIAM THOMAS,GRENFELL | GRENFELL,WILLIAM THOMAS | 1855 | 155 | | 0 | before 1881 | 129 | 26 | | M | YES | YES | |
| 35 | I2036 | Grenfell, Wilmot Father: Grenfell, Henry Mother: Leah, Amelia | WILMOT,GRENFELL | GRENFELL,WILMOT | 1869 | 141 | Boscaswell | 0 | | | | | F | YES | YES | |
| 36 | I1962 | Grenfell, Wilmot Father: Grenfell, Richard Mother: Warren, Jane | WILMOT,GRENFELL | GRENFELL,WILMOT | 1838 | 172 | St Just in Penwith | 7 | | | | | F | YES | YES | |
| 37 | I1675 | Grenfell, Winifred Father: Grenfell, John Winn Gilbart Mother: Hattam, Anne | WINIFRED,GRENFELL | GRENFELL,WINIFRED | | | | 0 | 1939 | 71 | | South Africa | F | YES | Y100 | |