According to the 1910 U.S. Census, Neil P. McCafferty and his wife Hannah A. (Green) had 9 children, 8 surviving. The children's names and ages given were: Neil J. 27, Mary A. 25, John A. 22, Rosa A. 19, Winifred C. 14, Daniel E. 11, Catherine 4, and Vincent J. 2. Also living at 544 Ridge Ave. with the McCafferty family was Hannah's mother, Rose (Waters)Green, age 75.
I'm guessing that Mary became Mamie or Mame and grew younger at each succeeding census.
Hannah was the sister of my great grandmother, Frances.