 In January 2009 he became chief justice when Kay McFarland resigned due to state mandated age limits.Davis also held many offices and memberships.He was a member of the Governor's Advisory Commission on Alcoholism from 1971–1976 under Governor Robert Docking, chairman of the board of trustees for St. John's Hospital in Leavenworth from 1980–1984, director and president of Leavenworth County Community Corrections Board in 1980–1984, director of the Leavenworth Historical Society from 1970–1975, general counsel and board of directors for Leavenworth National Bank and Trust Co. from 1972–1984, and a council member for St. Mary's College in 1984.