Looking at the nephew Henry Wilson in hopes of finding where Richard was born. Given Matilda was too young to be his sister I think she was probably the daughter of Richards brother. Henry would be his great nephew.
Births HENRY RICHARD LUFF WILSON - mothers maiden name Luff
March qtr 1845 SAINT LUKE MIDDLESEX Volume 02 Page 315
Marriages March qtr 1844
LUFF Matilda Mary Brentford 3 12
Wilson Henry Brentford 3 12
It was 19.2.1844 at Isleworth but no other info shown on Family Search
Deaths Dec qtr 1844
WILSON Matilda Mary St Lukes 2 258 she was 21yrs old
Henry was probably born December 1844 but if his birth was registered after Christmas it would fall in the first qtr of the following year