Same generation (born in the early 1950s), same story: oranges, candy and some dollar store type toys. (No nuts, though.)
Marybet and Arminnie are probably right. My parents are from Scandinavia, and they've mentioned now and then that they very rarely got fruit when they were young. Oranges were very much a seasonal treat, and when they moved to California, it took a while for them to get used to see oranges in the store the year 'round.
As for why oranges, candies and small toys in the stocking: with a lot of kids in the house, each stocking had to have pretty much the exact same contents, otherwise there would be hurt feelings. And we were happy to get some candy to munch on and small toys to play with - after all, the bigger packages would still be waiting under the tree, and the parents wanted to keep us busy for at least a few minutes more ...