Jack Keefer was a World War II veteran, having served for four years on the crew of a PT Boat. After the war he and his wife moved to Highland Park and he worked in a pharmacy in Glencoe. After working for a few years, in 1949, he purchased a pharmacy in Mount Prospect from a man named Steve Brant, who had purchased the pharmacy from George Engblom. He soon became a fixture in the community. He was involved with many local organizations including the Mount Prospect Historical Society. In an interview in 1991, he remembered when he first started, being thrilled when he filled 15 prescriptions in one day. However he was here for the great boom in suburban development in the 1950s and before he retired his record for prescriptions in one day had passed 285.