Help! I am desparately looking for an old recipe that we always called Banana Delight. I can't quit craving it!

It is a layered dessert with a graham cracker crust, melted marshmallows, sliced banana, whip cream and possibly pudding, but I can't remember. There is no pineapple in the recipe I do know that.

This is a delicious dessert, and I can't find anything like it online anywhere. The origin came somewhere from my father's ex-wife's mother and maybe her mother's mother, so it's not as if I can ring them up out of the blue and ask for a secret family recipe!

Any ideas out there would be really appreciated.

Thanks :o)