A boy walking in the woods finds a car with a dead man. Think it was a gangster or mafia but not sure about that. Finds money and hides it because Dad would make him turn it in.
Find out family needs money and has friends dad(?) find a way to give some money.
Think he finally confides in Mom and she get the money where it's needed.
I think story took place in the 50's but could be wrong.
Sorry about all the uncertainities; I read it too many stories ago to be positive of details.