Hugh O'Neill married Christina Scott and had three children, Henry born in 1844, Mary born in 1845 and Christina born in 1856. He was recorded in the Montreal City Directories from 1854 thru 1860, first as a laborer, then for many years as a milkman, carter and saloon keeper. Christina died, two years after Hugh, in 1892.
His address most of these years was at 72 St. George in Montreal, Quebec. He and Christina are buried at Notre Dame des Neiges in Montreal along with daughter Mary O'Neill (1845-1928).
Note: Mary O'Neill (1845-1928) is recorded on Hugh and Christina's tombstone.