You must have missed the marriage on IGI-
MATTHEW SILBURN
Marriages: Spouse: MARY HANDLEY
19 MAY 1788 Messingham, Lincoln, England
Matthew buried 11 June 1851 Messingham age 85
He in indexed in 1851 as SELBOURN - birthplace given as Messingham
I see there was a Henry SILBERN bap in Messingham in 1768 son of Matthew and Jane - very likely a sibling I would have thought.