Three Servicemen from State KilledWASHINGTON (AP)-A Vietnam casualty list released Monday by the Defense Department included the names of three Wisconsin servicemen.They were Army Spec. 4 Richard D. Bartholomew Jr., son ofMr. and Mrs. Richard D. Bartholomew Sr. of Wausau; Army; Pfc. William D. Bakken, son of: Mr. and Mrs. Norman D. Bakken of West Allis; and Marine Corps Pfc. Thomas L. Armitage, son of Mr. and Mrs. Rodney G. Armitage of Medina (Outagamie County).The Pentagon said all three men were killed in action.