Looking for Richardson Descendants

Margaret Richardson (daughter of Thomas Richardson and Frances ?)baptised 1803 Holborn, London, married Joseph Buck (Toolmaking business)in 1822 at Finsbury, London. Margaret had a sister Elizabeth(Betsey)whose married name was Godfrey. and possibly a brother Thomas.
Could have been other siblings.

Margaret died in 1863 at Waterloo Road; Betsey (who had a daughter Margaret) lived with Joseph and Margaret for many years.

Seeking information pertaining to the Richardson family - I have considerable information regarding the Buck family.