Bob was a graduate of Swarthmore (Pa.) High School, where he was class treasurer, involved in the yearbook, and a member of the band and orchestra, playing clarinet and saxophone. A chemical engineering major at Princeton, he ate at Court Club and participated in the American Institute of Chemical Engineers, the bridge club, Whig-Clio, and the Marching Band. In his senior year he roomed with Jack Caton, Chris Heller, Rudy Hutz, Wayne Lake, John Rorke, and Paul Toot. Following graduation, he obtained a Ph.D. from the University of Minnesota and spent a postdoctoral year at Cambridge, all in chemical engineering.
In 1964, he joined Chevron Research Co. in Richmond, Calif., remaining until his retirement in 1999. In 2008, he became a director of Theta Oil & Land Co., serving as treasurer for several years.
Bob loved travel and enjoyed the performing arts: music, theater, opera, and ballet. For many seasons he saw three performances of every program at the San Francisco Ballet.
He married Emily Henning in 1962 and the Wardens had two children, Elizabeth and Bruce ’92. Bob is survived by Emily, their two children, two grandchildren, and a brother, William.