Both the Marriages are on FreeREG 1757 to Dorothy SEARSON and 1775 to Ann HILL
Unfortunately it does not state if he was a Widower.
Baptisms to EDWARD/DOROTHY, Queniborough;
EDWARD, 27 Feb 1761
ANN, 26 March 1766
SAML, 30 July 1768
THOS, 27 May 1770
(Familysearch.Org)
Then we have same pace to EDWARD/ANN;
ANDREW, 28 June 1778
(Familysearch. Org)
As Edward/Ann seem to have only I Child I think it is entirely possible it may be a second Marriage for Edward.
But a Burial for Dorothy needs to be found 1770-1775 to prove it.
Hopefully someone can help you
