I'm shorter than my dad by 1", hes' 6'2"

My mom's side of the family is a bunch of shorties though, so I guess I'm lucky I'm even as big as I am. My maternal grandfather was 5' and my mom's sister is 4'10" :Q
Anyway, there is such a thing as leg-lengthening surgery. In the US it's generally only done on those with dwarfism, but it's a popular cosmetic surgery in China, where, of all places, height is considered important

Essentially they screw a strong brace into your leg at the top and bottom, then break the leg in the middle. Every week they lengthen the brace by a tiny amount, allowing the bone to grow into the gap. Usually takes 6-12 months. The popular cosmetic surgery in China mostly only does the lower leg bones (ones in the calf, I forget what they're called) but in the US where it's done for medical reasons, the femur is usually done as well.