John & Margaret's marriage year is estimated based on the birth of their first child. If GRO records are accurate, Margaret was more than 10 years younger than John and 16 when she became a mother for the first time. John was a stonemason by profession throughout his life. Since a number of the children were born in Dublin, the family may have lived in Dublin early on then moved to Belfast sometime before Margaret's death in 1888. By 1901 John was living with his daughter Sarah and son-in-law James at 68 Grove Street. In 1907 he was living with his son Charles and his daughter-in-law Elizabeth at 97 Beechfield Street when he died.

Children Michael & Thomas listed on this tree were collected from 3rd party records. Ann and Margaret were confirmed from UHF records. Charles was confirmed with GRO Ireland record and John, Sarah & Charles confirmed from Census records. There is one more possible - Martha McGrath is listed on 1911 census records as relative of Charles. Based on the record, her year of birth is 1881.