Michael Gerard was addressed by his middle name so as to not confuse everyone with dad, or so I surmise that is why he is listed as Gerard on the 1911 Census. Also he immigarted to the states and then returned to Ireland and married an O'Connor in 1941. Witnessed by John Cagney and Eileen O'Connor
Irish Census 1911: http://www.census.nationalarchives.ie/pages/1911/Limerick/Croom/Bridge_Street/617494/
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