After her mother died, Agnes was raised by an uncle David Mitchell/McWilliams and/or Mrs. McWilliams, who may have been born a Mitchell. After Joseph’s death, Agnes made her home with her son Edwin’s family. In 1910 she is listed as age 89, and widowed with only 4 of her 7 children living.
By 1920 Edwin had died, and she is living with his widow Euphemia Tweedie Kilpatrick (72, Scotland) who immigrated in 1851 and was naturalized in 1873. Agnes is listed as age 98.
One family story reports she was an invalid for 57 years, photographs suggest otherwise.
[Obituary] New-York Tribune - Wednesday, 28 September 1921, pg 11
Mrs. Agnes Kilpatrick
Monticello, Sept. 27 - Word was received in Monticello today of the death of Mrs. Agnes Kilpatrick, a centenarian, at the home of her daughter-in-law, Mrs. E. D. Kilpatrick in Walton, in her one hundred and first year.
Mrs. Kilpatrick was born April 10, 1821, in Kortright, N.Y. She was a daughter of Mr. and Mrs. William Robinson of Kortright. She was married in 1842 to Joseph Kilpatrick. She is survived by two sons, the Rev. Milton Kilpatrick of San Jose, Calif. and James Kilpatrick of Meredith, N.Y. and also twenty-two grandchildren and twenty-three great-grandchildren.