Roy W. Pengra died Friday, May 30 in an accident at his home on Lame Johnny Creek at 77 years of age.
Lilah Morton Pengra, his wife, survives him.
His sister, Patricia (Pengra) Monaghen, and nephew, Sean Monaghen, both of Kansas, survive him. His extended relatives, Jane (Morton) Weede, Lilah Haxton, Ruth (Haxton) Huffman, Daniel Weede and Dean Weede, also survive him.
His parents, Victor and Gladys (Burton) Pengra, sister-in-law, Judy (Morton) Haxton, and nephew, David Weede, predeceased him.
He and Lilah both graduated from Grinnell College, Grinnell, Iowa and were married there two days before their graduation in 1969. He earned a doctorate in mathematics at the University of
Wisconsin, Madison. Roy completed a first draft of his The Elementary Functions and Riemann Integration and was revising the manuscript until the day before his death.
Roy returned to South Dakota in 1980 and, together with his wife, designed and built an underground, passive solar home. A few years ago, he retired from Ainsworth Benning Construction Company as a Site Supervisor.
He played cornet in Rapid City High School Band, Grinnell College Orchestra and Rapid City New Horizons Band. He loved his cats, music and science fiction.
Roy’s cremains will be scattered on his property later this summer in a private gathering.
Donations in his memory can be made to the Pioneer Fund of Grinnell College, 733 Broad Street, Grinnell, Iowa, 50112. https://campaign.grinnell.edu/priorities/pioneerfund.
