He is without a doubt my all time favorite rider and a great person.
I was working at Budd's creak for both crashes. The first jump (now named after him) comes after a very fast section (I'm topped out on a 250mx bike with -2 in the rear). Its a steep up hill, sharp point, steep down hill, 180° right turn. Most everyone gets on the brakes hard before the crest of the hill, soaks up as much of it as possible and still floats 2/3rds of the way down the hill. Henry for whatever reason (most think it was caused by some bumps prior to the jump) didn't even let off, much less brake. He launched super high - so high that his wheels clipped a speaker wire - landed at the bottom of the hill (probably a 140 foot drop) on flat ground, his frame visably flexed, and he and the bike bounced a couple of times before he came off. He was carted off and his bike was quickly carted off to the honda truck. Word in the pits was that the forks and frame were both badly damaged.
The second crash was on a up-hill double called the big gulp. Henry didn't do anything wrong this time. He was on a works YZ400 (this was before yamaha had a production YZ400). Emig had rammed him in a turn near the scoring tower and ripped a rad hose off his bike. Of course he had no way of knowing this. His bike suddenly locked up (rear wheel skidding) just as he left the jump face. This caused him to plow into the face of the second jump in a front-wheel down aditude. Again, he trid to ride it out, but both wrists/arms broke upon impact. He couldn't get his goggles or helmet off so he ran to the side lines where some fans helped him get his gear off.
After the first injury doctors said he would not be able to walk after they "fixed" him up. He and his wife said that was not good enough. He went a week without medical treatment (he had several broken vertibra and ribs) untill they found a doctor willing to try a previously untested procedure involving some sort of ti sleave that was to be fitted over his spinal column. He went for it and it worked well:)