Well, technically a crossbow is a bow mounted on a stock
But yeah, OP was talking about archers specifically, but as most of the often discussed issues are exactly the same whether it's crossbowmen or archers I just posted the recent picture I had with both. There were many more archers than xbows btw, and many more of both than what you see on the picture. You just have to take my word for it or go play a few maps yourself. /Not that this random picture is worth much as evidence for anything whatsoever, just had it lying around when I spotted this thread - better examples could be found easily.
And as I'm a teacher I certainly don't hope I failed any testing in school, for my students' sake