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Obituaries, July 2023

Obituaries, July 2023

From Insights, July 2023


Jon J. Ernst

Associate Member ASHRAE; Houston, Texas; joined ASHRAE in 2023.


Leslie E. Heideman, P.E.

97; Life Member ASHRAE; Wentzville, Mo.; joined in 1948. He received the Distinguished 75-Year Member Award in 2023.


Hendrik J. Mouw, P.E.

99; Life Member ASHRAE; Swarthmore, Pa.; joined in 1948. He served as Historian of the ASHRAE Golden Gate Chapter. He received the Distinguished 75-Year Member Award in 2023.


Dr. Herman H. Nijhuis, P.E. 

91; Life Member ASHRAE; Kirkland, Wash.; joined ASHRAE in 1966.


John D. Roth

92; Life Member ASHRAE; Le Clarie, Iowa; joined ASHRAE in 1963.


Donald A. Sweetland

96; Life Member ASHRAE; Fort Mill, S.C.; joined in 1956.


Warren R. Thessman

86; Life Member ASHRAE; Wellington New Zealand; joined ASHRAE in 1975.


Willard C. White, Jr., P.E.

88; Life Member ASHRAE; Cumming, Ga.; joined ASHRAE in 1964.


Christopher A. Wilson, P.E.

92; Life Member ASHRAE; Tega Cay, S.C.; joined ASHRAE in 1975.