MENLO PARK — Army Pvt. Donald L. Ganschow, 21. whose wife. Lana, lives at 840 West ridge drive, recently completed eight weeks of advanced armor training tinder the reserve forces act program at Fort Knox. Ky.Ganschow, son of Mr. and Mrs. George W. Ganschow. 229 Byron street. Palo Alto, is a 1955 graduate of Palo Alto High school. He was employed by the Pacific* Telephone and Telegraph in Palo Alto before entering the army.