LAND WITH 11TH ARMORED CAVALRYFOUR COUNTY MEN IN SAME VIET REGIMENTFour Mt. Vernon and Jefferson county soldiers have landed in Viet Nam with the 11th Armored Cavalry Regiment.Specialist Fifth Class Gary G. Williams, 20, son of Mr. and Mrs. Floyd E. Williams of Wood-lawn.Pvt. Dennis A. Richards, 20, husband of Colleen Marie Richards and son of Mr. and Mrs. Noel N. Richards, all of Belle Rive.Pfc. John R. Pierce, 21, son of Harry Pierce of 1004 south 22nd street, Mt. Vernon. Specialist Fifth Class LarryW MouiqII PW con of Mn .TaariA. Anthony of 1009 Pace Avenue, Mt. Vernon.Williams is a tank driver in Troop M, 3rd Reconnaissance Squadron.Richards is an infantryman in Troop L of the same squadron.Newell is a gunner in Troop M of the same squadron.Pierce is a mechanic in Troop I of the same squadron.The 11th Armored Cavalry, an Army unit that took part in the Philippine Insurrection of 1899* 1903, is a highly mobile regiment which was last stationed atFnrt ntvu'irp MH.