Both Sarah and Raphael stated their parents occupation Thomas (a Baker - Sarah's father) William (a sculptor - Raphael's father) and that they were alive at the time of their wedding in October 1850.
That would be a very unusual statement on a marriage register. You said earlier "
presumably he was still alive at the time".
If this Sarah Osborn was the one baptised at St Leonard Shoreditch in 1817 (parents Thomas, a labourer, and Ann, Hackney Road) then she had a brother John Stock Osborn born and baptised in 1814.
Noting that Thomas Gough of 67 Murray Street was married to a Jemima Allshorn, I did wonder if Osborn might be a corruption of Allshorn but Jemima's older sister Sarah seems to have married a William Hickson in 1841, and their father was a William.