Strategic Air & Space Museum. He served many years in the Air Force in the Strategic Air Command division and this was a real treat for him.
Sew Mama Sew: How to Alter Your Pants Pattern that helped me determine to take a little off from the inside leg, with more coming off the outside leg to equal my overall measurement. It was hard to actually use his rtw pants as a 'pattern' because he still wants to wear them.
Wishing everyone a wonderful day!