ducation, his goal was to inspire and train the next generation of engineers to solve real-world problems. He retired in May of 2000 as professor emeritus in the department of aerospace engineering at Iowa State. Rollie will be remembered for his big smile and quick wit. He was an avid sports fan, especially of his beloved Cyclones and New York Yankees. Always one to challenge his brain, he worked the New York Times crossword daily for decades, and in later years could regularly be found working a sudoku puzzle. He was always available to anyone who needed help or advice and was quick to offer a kind word and a "thank you". Most of all he loved and was dedicated to his family. His grandchildren have fond memories of Grandpa Rollie's sense of humor, dressing up as Santa Claus every year, making homemade ice cream, and throwing his nasty eephus pitch for batting practice. He is survived by his loving wife of 64 years, Phyllis (whom he told every day she was beautiful); daughter Lisa (Jim) Keller and son Leigh (Susan) Jenison; grandchildren Andrew Keller, Paul Keller, Grace Keller, Anna (Danny Umhoefer) Jenison, and Tom (Kierra Carbajal) Jenison; brother Lynn (Karen) Jenison and sister-in-law Lynn Jenison. He was preceded in death by his parents, his brother Jerry, and his granddaughter Lena Jenison. The family would like to thank the staff at Green Hills and Suncrest Hospice for their excellent and compassionate care. Memorial contributions may be directed to the Eleanor L. Kniker Endowment at the DMACC foundation https://www.dmacc.edu/foundation/makeagift.html which provides scholarships to Green Hills employees pursuing a nursing career, or to the Alzheimer's Association at https://www.alz.org/. An open house to celebrate Rollie's life will be held on Monday, December 16, 2024, from 1-3 p.m. at the Green Hills community room, 2205 Green Hills Drive in Ames. Online condolences may be left at grandonfuneralandcremationcare.com.