is he s/o Wm Crennel (grocer) Summerland in 1881c
if so then probably s/o John Crennell + ann tear - in 1841 he is farming intack in Andreas but in 1851 ann is a sailor's wife staying next door to probably her brother philip Tear ballachine house (farming 181 ac)
John is probably s/o Wm crennell farming braust in 1851 - there are 3 MI's to this family in Andreas
L.13 old yard Sacred / to / the memory of / WILLIAM CRENNELL, / of Braust, / who departed this life / the 25th of July 1863, / in the 72nd year of his age. / "When a few years are come, / then I shall go the way whence / I shall not return". J,.ob. XV1. 22

Ann tear crennal is probably MI D.3 in andreas Old In memory of / ANNE CRENNELL, / wife of JOHN CRENNELL / born 23rd July 1805 / at rest 19th September 1878. / "Ta"n Chloan Eck GirreeSeose, As / Genmys Ee Bannit".

the rechab probably arises from fa being a rechabite ?