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On 14 October 1777, Daniel Doyle married Mary Walsh in the parish of St Catherine's, Dublin.
Here's the link to their marriage record: http://registers.nli.ie//registers/vtls000633526#page/1/mode/1up
So it looks like Daniel Doyle (1778–1836) may have been Daniel Jr.
Unfortunately, nothing coming up on searches combined with the other names you mentioned.
Rua, IrelandXO Volunteer ☘︎