There is a difference between being registering to be drafted, being drafted and enlisting. I have multiple relatives who registered in their 50s and even at 63 yrs of age. My GrandF enlisted at age 30 in 1943.  
 Ed was rejected for eligible service due to the growth over his one eye, deemed to slightly impair his vision. I've not found any evidence of either Henry or Ed having registered; Ed's physical rejection likely disallowed it and perhaps Henry never attempted to.    WQ59B