Patrick Jennings was the eldest son of Daniel Jennings [1765-1830] of Mill Street, Newry, County Down, and his wife Bridget.
Patrick Jennings married Anne Coleman, the eldest daughter of Bernard Coleman, in Newry in 1829. John Caraher, who was a witness at the marriage, was the husband of Eliza Jennings, first cousin of Patrick.
Patrick Jennings and Anne Coleman 1829. Witnesses John Caraher and Mrs. McGinnis.
They lived in Francis Street, Dundalk, County Louth, where Patrick was a timber merchant.
They had nine children.
- Daniel Jennings [abt 1830-1847]. Daniel was a student at Clongowes Wood College, a Jesuit school situated in County Kildare, from 1841-1843 and again from 1846 – 1847.
- Bernard Jennings b. 1832. Named after his maternal grandfather Bernard Coleman.
- Anne Jane Jennings [1834-1878]. Anne became a nun in the Mercy Order.
- Mary Bridget Jennings b. 1836. Possibly named after her two grandmothers.
- Catherine Jennings b. 1838 in Francis Street, Dundalk.
- Charles Jennings b. 1840.
- Julia Jennings [1842-1919]. Unmarried. Francis Street, Dundalk, County Louth.
- Patrick Coleman Jennings [1845-1921] 5 Francis Street, Dundalk, County Louth. Timber Merchant.
- Joseph Daniel Jennings [1848-1930]. Seatown Place, Dundalk, County Louth. Timber Merchant. Married Frances J. Murphy.
Francis Street. A good business street, only a few private houses in it composed mostly of shops and public houses.
Patrick Jennings. House, Stores, Offices and Yard. Good Coal and Timber yard and gateway entrance from street. Altogether a good concern well fitted up for the Coal, Timber and Iron Trade.