Archbishop John Potter (1674-1747)

Fairly reliable but un-documented evidence has it that an ancestor (great great aunt) of mine, Eliza Reeve born 1838,in the area of Hackney, London married a John Potter, a direct descendant of Archbishop of Canterbury John Potter (1674-1747). The 19th century John Potter may have been a son of Theophilus John Potter and a brother of Edwin.
Any links or suggestions welcome.Brian Davis