 He remained involved in community issues, frequently giving speeches and attending functions as a former state senator.He was an board member of The Columbia Bank and president of the Howard County Conservancy as well as an active member in the National World War II Glider Pilots Association, participating in reunions and trips with other members.Senator and Mrs. Clark visited Holland on more than one occasion to mark the anniversary of Operation Market Garden, including on the fiftieth anniversary in 1994.