 Currently, nine women are serving as governors of U.S. states, along with the Mayor of the District of Columbia Muriel Bowser, and territorial governors Lou Leon Guerrero of Guam and Wanda Vázquez Garced of Puerto Rico.The first woman to act as governor was Carolyn B. Shelton, who served as acting governor of Oregon for one weekend – 9 a.m. Saturday, February 27, through 10 a.m. Monday, March 1, 1909.The outgoing governor, George Earle Chamberlain, had been elected to the Senate and had to leave for Washington, D.C., before his term was over, and the incoming governor, Frank W. Benson, had gotten sick and couldn't assume office early.