From "The United States in the First World War, An Encyclopedia" edited by Anne Cipriano Venzon, (Garland, 1995)p. 515:
August 1918: the 27th and 31st Infantry regiments arrive in Vladivostock from Manila, via the transports "Warren", "Merrit" and "Crook".
From "The Doughboys, America and the First World War" by Gary Mead,(Overlook, 2000)p. 276:
339th Infantry regiment, 310th Engineers, 337th Field Hospital and the 337th Ambulance Company (all diverted from the 85th Infantry Division)arrive at Archangel from Murmansk on the USS "Olympia". July 1918. American intervention ended April, 1920.
See both these sources and get a map of Russia for their duty stations and operations.
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