Sorry but I don't have any further information. The Russian Revolution was in Novemeber 1917 (current calendar though it was in October under the old Russian calendar).
So if he got there in late 1917, things would have been all up in the air. Lithuania did not declare its independence until February 1918 which added to the mix.
My mom's side of the family had already emigrated to the U.S. by that time while my father's family were all still in Lithuania trying to survive.