Abrams in Camberwell, London

Family "wisdom" suggests that the following Abrahams may have changed their name from Abrams.

HENRY CASWELL JESSUP was born 02/7/1868 in Camberwell, Surrey, and died 21/7/1942 in Camberwell and buried 18/3/1943 Camberwell New Cemetery.He married ELLEN BODEN ABRAHAMS 24/8/1890 in Camberwell, London, daughter of THOMAS ABRAHAMS and ELLEN BAKER.She was born 29/7/1864 in Pickled Egg Crayford Passage!!, and died 12/3/1946 in Camberwell, aged 81, and buried 12/3/1946 Camberwell New Cemetery.
THOMAS ABRAHAMS was born abt. 1823 per1881C.He married ELLEN BAKER bef. 1864 from birth cert of Ellen Boden.She died bef. 1881 per 1881 census.
Has anyone come across any of the above.
Regards
Peter