Idaho

Territorial Governors
1863-1864   William Henson Wallace
1864-1866   Caleb Lyon
1866-1870   David W. Ballard
1871-1871   Thomas M. Bowen
1871-1875   Thomas Warren Bennett
1875-1876   David P. Thompson
1876-1878   Mason Brayman
1880-1883   John B. Neil
1883-1884   John Nichol Irwin
1885-1889   Edward A. Stevenson
1889-1890   George L. Shoup

State Governors
1890-1890   George L. Shoup
1890-1893   N.B.Willey
1893-1897   William J. McConnell
1897-1901   Frank Steunenberg
1901-1903   Frank W. Hunt
1903-1905   John T. Morrison
1905-1909   Frank R.Gooding
1909-1911   James H. Brady
1911-1913   James H. Hawley
1913-1915   John M. Haines
1915-1919   Moses Alexander
1919-1923   D.W. Davis
1923-1927   Charles C. Moore
1927-1931   H.C. Baldridge
1931-1937   C. Ben Ross
1937-1939   Barzilla W. Clark
1939-1941   C.A. Bottolfsen
1941-1943   Chase A.Clark
1943-1945   C.A. Bottolfsen
1945-1945   Chas. C. Gossett
1945-1947   Arnold Williams
1947-1951   Dr. C.A. Robins
1951-1955   Len B. Jordan
1955-1967   Robert E. Smylie
1967-1971   Don Samuelson
1971-1977   Cecil D. Andrus
1977-1987   John V. Evans
1987-1995   Cecil D. Andrus
1995-1999   Phillip E. Batt
1999 now   Dirk Kempthorne

Reference
U-S-history.com, Governors of Idaho