I was an adult before I found out that *most* people make their ham salad out of... well....ham. My mother would grind up a big hunk of boloney (or bologna, if you want to make it sound better), mix it with mayo and pickle relish and VOILA! ham salad. And we ate a lot of it.
I guess, to be totally accurate, bologna *can* be all pork, which being cheaper than "all-beef bologna" was probably what she used, frugal being my mother's middle name.....thus it was distantly related to ham as we know it. There's even veal bologna for the connoisseur and turkey bologna for the health-conscious among us and even tofu bologna (not-so-fondly known as "phony boloney) for the Vegans.
To wander no farther down this gustatory minefield, I'll say I dislike ham salad to this day, no matter *what* it's made of.