Carolyn,
These are the marriages you talked about
Extract from the Sussex Marriage Index:
Place: Mayfield, East Sussex, Date: 14 Feb 1792:
Subject: Ann FOSTER
Spouse: James MEDHURST, botp (B)
Extract from the Sussex Marriage Index:
Place: Mayfield, East Sussex, Date: 30 Oct 1763:
Subject: Thomas FOSTER
Spouse: Ann SELLING
Extract from the Sussex Marriage Index:
Place: Mayfield, East Sussex, Date: 6 May 1763:
Subject: John FOSTER, otp
Spouse: Elizabeth BAKER
Found this marriage. Note that he marry's a SELLING, same name as Thomas's wife. Could be the same John that married Elizabeth. Look for a burial of Elizabeth.
Extract from the Sussex Marriage Index:
Place: Mayfield, East Sussex, Date: 23 Oct 1768:
Subject: John FOSTER
Spouse: Martha SELLINGS
Also this marriage of Ann Foster which is a second marriage as she is a widow. Looking at the index it would appear that this second marriage is Ann who married a John Crossingham in 1757
Extract from the Sussex Marriage Index:
Place: Mayfield, East Sussex, Date: 3 Oct 1783:
Subject: Ann FOSTER, wid
Spouse: Thomas HUNTLY, botp (B)
Hope this hasn't served to confuse you, but, to me, it looks like there were two brother's & a sister in Mayfield at that time, ANN, Thomas & John. What I found from the index was that all the marriages in the name of Foster in Mayfield from 1605-1837 were all female.
Jane