When he came to America he was 13, and instead of going to school he worked with his father, so i don't know when or how he learned to read and write and do math, but he always made his own signs and price tags and did the math at the register on his own.
He didn't keep kosher and the meats at the store were not Jewish deli type meats, so when grandma came over she would make him wash his hands whenever he came into the house from the store.
The walk-in refrigerator at the store was also our home refrigerator and we also had a freezer, one of the first there were, that was built by uncle Harry Altman. In the freezer Jack was the first in Philly to carry 'Birds Eye' frozen foods.
We had a black cat named Niggy. she used to pee on the coal in the basement and made it stink.
One time Mort went to the basement with a torch and ran into a cotton ball and set fire to the entire basement.
Dad was kind to all his customers and was very slow to anger. He had very good relations with the tavern next door and used to go there for fried oysters with mom often.