Thank you for your message. It looks like we might be on the right track.
My information on the Australian side of the family comes from the will of Henry Martin Doyle (son of James Doyle). Margaret Renehan, Avoca, 4 Wolesley, Mount Albet, Victoria was mentioned in the will and is referred to as his niece.
So it looks like you might be one of "our" Doyles. Would love to share some information if you are interested - I have a lot of information on the Wexford side of the family as I live in Ireland.
I believe that Lillian Edgar, Brigg St., Caulfield, Victoria and James Doyle Crozier (not sure if this is a surname or a place) were also referred to as niece and nephew of Henry Martin Doyle in his will but don't know for certain if this is the case.
Look forwarding to hearing from you