The origin of "Banaba" bread

When I first moved away from home, I called my mom to get her recipe for Banana Bread. This is what I wrote down:

2 to 3 mashed bananas
1/2 cup nuts
1 3/4 cup flour
1/4 tsp bakin’ soda
2 tsp bakin’ powder
some salt
1/2 cup oil (or 1/4 cup apple sauce, 1/4 cup oil)
2/3 cup white sugar
2 eggs

As I recall you just put everything in one bowl, mix it up, put it in a loaf pan in the oven for 20-25 minutes (maybe longer?) at 325°F. Poke a toothpick in to find out if the loaf is ready; if the toothpick comes out clean it ready.