I notice from one of the other threads that you haven’t located the births of children Hugh & Dora in Ireland. Dora Burns is not a very common surname. There are only 2 entries in the LDS site which roughly fit. One is Dora Burns b July-Sept 1909 (Vol 1 p 565) in Kilkeel, Co Down. (There would have been stone quarrying work in the Mourne mountains). The other is Dorah Burns b Apr-Jun 1908 Milford, Donegal (Vol 2 page 223). Interestingly there is also a Hugh Burns b Milford Jan – Mar 1905 (Vol 2 p 217). If you are keen to trace their births, those might be worth looking at.