We had a Corporal Major in my outfit - he transferred out before he got promoted, so I missed out on all the fun of that...
My uncle had a dog named "Jennie" once - short for "General Nuisance"
Yes, there was indeed a "Captain America" - he retired from the USMC in the mid-70's I think (as a LtCol by then)
Last but not least, we had a Captain (who shall otherwise remain nameless) in our Squadron who was single, and a pilot. He really liked racking up his flight time, so anytime there was a ferry flight, air show static display, check flight, or cross-contry flight for any reason, he'd volunteer for it. Our parachute riggers (they maintain all the flight clothing and equipment) made him up a special nametage for his flight suit/jacket. There below his Naval Aviator wings was his name - "Max Perdiem TAD Pilot" He thought it was so cool, it was the only nametag he wore from then on.