Keith L. Zerschling passed away on February 19, 2021 at the age of 94 after a courageous battle with heart disease and Parkinson's Disease. Beloved husband of Anne for 67 wonderful years. Loving father of Lee (Todd) Savage. Proud grandfather of Leslie (Andrew) and Eric (Lisa) and great-grandfather to three boys.

Keith was called to serve his country during World War II and was sent to college for pre-flight training. He earned his Bachelor's of Science in Civil Engineering from University of Colorado in 1948 and Bachelor's of Law LL.B. from University of South Dakota soon after. He was once again called to serve his country during the Korean War, serving in the Civil Engineer's Corps of the U.S. Navy. While stationed in Morocco as an Administrative Officer, he and Anne were married in Tangier in 1953. Following his service, he achieved his Master's of Law degree from Georgetown University. While attending law school, Keith worked as a patent examiner. Following graduation, he joined Ford Motor Company in 1957, serving as a patent attorney and retired as the Assistant General Counsel of Intellectual Property.

Following Keith's wishes, private cremation has taken place.

Memorial contributions are appreciated to the Parkinson's Foundation,