This photo is believed to be from 1860-1880 Poland/Lithuania, as the house behind them looks like a Polish thatch house. The man in question is in the center back of the photo.
Uniform is single breast metal buttoned with matching trousers. Soft shoulder tabs. Small round lapels with marking or insignia. Boots and a round cap are present. The round cap has a double dot and narrow round peak.
The photo was found in collection of family photos. It has a border on the top and bottom. No marking on the back. The size is approximately 3 x 5. I will edit the post with a better picture. The only person I can identify is the young boy, whose name is Piotr Kananowicz. He was married and had 3 sons. The oldest being born in 1882 and the youngest in 1889. I have no further information on Piotr. His oldest son Alexander claimed he was from Soboleik. Other documents he just said Poland or Russia
