These are the Chilkat Dancers from Haines or Port Chilkoot as it was called at the time. The man using the drum on the far left is Carl Heinmiller. Identification courtesy of Blythe Carter, Sheldon Museum & Cultural Center.
Left to right: Aleksandr Kedrovskii, Bishop Tikhon Bellavin, and Petr Popov. The priests stand in front of a wooden building, on a rug at the top of a set of stairs. Another man looks on from a window.