He also claims that he and his brother were baling hay by the time they were 9 and 10 years old, one driving the tractor and the other stacking bales. He also claims his baler was an IH square baler. I wonder how heavy those bales were that either his brother or he were stacking at 9 or 10 years old?
Hay bales weigh about 40-75 lbs depending on how tight they are and the moisture in the alfalfa. You can get 100 lb bales but if you do the hay is too wet and shouldn't be put up.
We used to stack lots of 100 pound bales. In fact, a 40 lb. bale would be awfully light I think. Actually, we never weighed every bale, did you parados? How do you know? I merely took the word of adults as to how much they were likely weighing, and when they said they were 75 to 100 pound bales, they were probably not far off. Plus it depended upon if they were bound with wire or twine, as I think wire could bind a heavier bale?
At 9, we weren't throwing them over our heads but stacking them chest high wasn't that difficult. It's possible to stack hay and never actually lift a bale off the ground more than a few inches. Layer 1 you just drag into place. Layer 2, you just let the bale come out on end and then roll it end for end to get it on top of layer 1. Layer 3 is just a variation on layer 2. You just need one bale as a step to get to layer 3.
If 10 year olds can tackle each other on the football field, why do you think they can't lift hay bales lighter than them?
I won't call you a liar, but suffice it to say I never saw any 8 or 9 year olds stacking hay, and in fact I doubt it would not be prudent for the parents to allow it. Face it, their bodies and bones would probably not be strong enough to do it without risk of injury I might have toyed around with a bale or two at 8 or 9, but I was about 12 or so before I did anything serious with it. More like 14 or 16 before I actually stacked much hay, I think. I think I was about the 8th grade, which would have made me about 14 when I started serious farm work. Prior to that, it was more like getting the cows in, feeding the chickens or cows, and fetching tools for my dad. My brother did much of the cow milking, which he started about the age of 12 or 13.
As I said, I am not accusing you of lying, but I am skeptical or dubious of your claims, and rightfully so I believe.