English: -101, a civilian women’s dormitory, housed women civilians, or non-military staff who were working for the Manhattan Project. Military personnel were often placed in barracks within the military section of Los Alamos, while civilian staff were housed in one of four civilian dormitories in town, in what is now downtown Los Alamos. Designed by Willard C. Kruger, who also designed many non-military facilities for Project Y, dormitories were some of the earliest buildings to be built on the mesa. T-178, a men’s dormitory, first appears on a map in August 1943, this map also included the first Women’s Army Corps (WAC) barracks in the military section in the Western area. In total, four civilian dormitories were constructed on the mesa, two male dormitories and two female dormitories, the female dormitory is all that remains today.