What a wonderful and full life!  Your life and contributions are a great legacy and role model for all of us in the next generation.  From one retired veteran to another, I salute you.  “Well Done.  Be thou at Peace.”

It was almost 60 years ago that I became Bill’s teaching assistant and he taught me how to lecture. More importantly he taught me the virtues of patience and kindness. He was the kindest of men and a brilliant scientific innovator, contributing immeasurably to modern respiratory protection.

He was my industrial hygiene professor in 1980. He was brilliant and kind. I later knew him when he lived in Marion. He was a true Renaissance man. I miss him very much.