Marcia Ann Kingen Hartsock (March 30, 1941 – November 4, 2012) was an American politician in Guam and member of the Democratic Party.
[3] She served under GFT President Conrad Stinson during the teachers strike, which started January 12, 1981.
[3] On February 7, Hartsock was involved in a GFT sit-in in the Guam Legislature and was among the 61 protesters arrested.
[4] Hartsock's term as executive director of GFT ended when she took office in the 17th Guam Legislature in January 1983.
In the general election, Hartsock secured a seat of the Guam Legislature by placing 12th.