Ruth Bell (née Zingel) is a premade deceased Sim from The Sims 2: FreeTime. She is the wife of Bartholomew Bell, the mother of Issac Bell, and the grandmother of Daniel Bell. She died recently after Issac grew up into an adult, according to Issac's memories. She taught him all his toddler skills, excluding Nursery Rhyme. Not much is known about her because she is deceased at the beginning of the game, and she is barely mentioned. Strangely, she died as an adult, just like several other deceased Sims in Desiderata Valley.
An oddity with Ruth is that, when viewing Issac Bell's family tree, she does not appear to have parents. This is apparently due to an oversight when the family was created. Nathan Zingel and Melissa Zingel were set as Ruth's parents, but Ruth was not set as their child. This can be fixed with SimPE.