Presumably this birth cert is him: https://civilrecords.irishgenealogy.ie/churchrecords/images/birth_returns/births_1869/03378/2238603.pdf but his mother is listed as 'Bridget Cleary' when all his siblings' mothers are listed as 'Catherine Cleary'. This could be a mistake, or maybe he had an affair with Catherine's sister, but was still raised in the same house. Neither woman can be found in Limerick in the 1901 census.
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Featured National Park champion connections: William is 31 degrees from Theodore Roosevelt, 37 degrees from Stephanus Johannes Paulus Kruger, 30 degrees from George Catlin, 36 degrees from Marjory Douglas, 42 degrees from Sueko Embrey, 33 degrees from George Grinnell, 44 degrees from Anton Kröller, 31 degrees from Stephen Mather, 32 degrees from Kara McKean, 34 degrees from John Muir, 35 degrees from Victoria Hanover and 45 degrees from Charles Young on our single family tree. Login to find your connection.