Yes, I am related to Ethel Moad.
She married my uncle Patrick (Tom) Seery who died at Bowral in the Southern Highlands where he was born.
"Tom" was the son of James Patrick Seery my grandfather.
Regarding the relationship of the original Thomas and Michael who arrived (1860 & 1861) in Australia - I have yet to see the proof they were brothers as they appear to have been linked as brothers only been assumption.
I am well aware they were both Police Officers in the Royal Irish Constabulary (RIC) prior to emmigration but their papers indicate they originate from different, but close, areas of Ireland