If you were to ask me what my favorite pie is, I'd say raisin ... or strawberry-rhubarb ... or raisin. It's a toss-up between the two! Raisin was also my grandpa's favorite pie. I don't recall my grandma ever making it, but I certainly remember my mom baking one at least once a year so he'd have some. He loved it ... and would talk about his mom, Grandma Phoebe, making it when he was a kid.
Grandpa was 14 when is mama died ... that was the early years of the Great Depression.