(-BEF 1881)
John Frederick Raven (ABT 1874-)
| +---James Howes (ABT 1806-)
+---Georganna Howes 
(ABT 1851-)
| +---Joseph Grimson (1773-01 APR 1839)
+---Jane Grimson (22 OCT 1809-)
| +---Joseph Rowland
+---Lavinia Rowland (1779-)
+---Ann Symonds