Hi again Margaret. I wonder if this record is for a sister of Edward?
<ref>"Ireland Civil Registration Indexes, 1845-1958," database, {{FamilySearch Record|FY9R-QZ3}} (10 March 2018), MARRIAGES entry for Elizabeth Batchelor Dunscombe; citing Dublin South, 1866, vol. 2, p. 778, General Registry, Custom House, Dublin; FHL microfilm 101,250. Volume Number: 2. Accessed 25 October 2022.</ref>
The mentions of New York City and the US Navy above suggest he spent time in the USA. That's not an area I have experience researching. To attract the attention of people who do, you could edit your original question and in the Surnames/Tags field add the tag
new_york
(typed exactly like that, with one underscore separating the words, and no space characters). You could also add further information you may have about Edward as a comment on your question.