Georgianna Isabella Brosnaham was the daughter of Dr. John Brosnahan and Isabella Eugenia Sierra. She was first married to her sister's Florida's husband, Francis B. Renshaw, after Florida died. Sometime after Francis died in 1867, she married William Kirk. At the time of her death she was living at the family home at 6 W. Chase St. in Pensacola. The cause of death was heart problems which she had suffered from for some time. She was survived by three daughters and one son. She is buried in St. Michael's Cemetery, Pensacola.

Copy of Obituary from the Pensacola Journal, Pensacola, Florida, Wednesday morning, 7 September 1910, p.2. A copy of this newspaper is available on microfilm at the University of West Florida, Pensacola, Florida.