Rosina was born in 1888 in Canton, Cardiff to Corn Porter Patrick (b. 1865) and Henrietta (b. 1865). She had six younger siblings; Henrietta (b. 1891), May (b. 1893), John Henry (b. 1895), George Patrick (b. 1899), Richard James (b. 1899) and Elsie (b. 1903). By the 1911 census, the family were reported as living at Severn Rd., Cardiff.
Rosina joined the Glamorgan 166 VAD, and was later transferred to the Shropshire VAD, starting work as a cook at Park Hall Military Hospital. Rosina was paid 17/3d per week.
Sadly, Rosina died whilst still in service at the hospital in 1919.