I have one piece of information: a grandmother of a 20-year-old had this photo in her house. I'm told the grandmother was born and raised in the US, but that her roots are in Italy and Lithuania.
What kind of uniform is it?
The uniform is a match for a Lithuanian army uniform, early 20th century. The collar symbol represents the Columns of Gediminas, which have a historic association with the Lithuanian region. Searching reveals some similar uniform photos with the same collar emblem being mentioned as 1920's to 30's, possible as late as 1939. I do not see any rank insignia on the shoulder boards, and sleeves are unfortunately not included in this image, so this individuals rank may have to remain a mystery.