Daniel Krumrei was born and raised in Wisconsin, and joined the Wisconsin National Guard as an enlisted man in 1977. A couple of years later his life took a dramatic turn, and he decided to become a minister with the Christian Church (Disciples of Christ). After finishing his religious education at Phillips University in Oklahoma, he and his wife moved to Iowa. In 1990 he deployed with the 209th Medical Clearing Company for the Gulf War, serving as a unit chaplain. Following the war, Krumrei answered a call to a church in Pittsfield, Illinois. By 1998 he was serving a congregation at Parkway Christian Church in Springfield while also making steady progress in his military career. He went on to become the Adjutant General for Illinois.