Kate Sophia Jennings was a twin daughter of Charles Jennings [abt 1818–1855] of Monaghan Street, Newry, and his wife Sophia Corley, daughter of Patrick Corley of Clones, County Monaghan. She and her twin sister Anna Maria were named after their grandmothers. Kate Sophia was called after her maternal grandmother Catherine O’Toole [abt 1747 – 1840].
Kate never married and moved from Newry to Dublin with her mother, Sophia, and three of her siblings after the death of her father, to live at 8 Cabra Parade, Phibsborough, Dublin. She continued to live there with her sisters Sophia, and Ellen, and her brother Andrew John, after her mother died in 1871.
She was the primary beneficiary in her sister Ellen’s will in 1891.
She died on the 29th of August 1900 of an intestinal obstruction at 10 Great Denmark Street, Dublin, and is buried with other members of her family in Glasnevin Cemetery, Dublin.