This is a picture of the Coulters (Pennsylvania) town team. This is probably not a professional team. Date is unknown, probably between 1900 and 1910. Exact identification of individuals is uncertain. A few sources agree that the man in the black shirt (back row, second from left) is Tom Harris, who played briefly in Organized Baseball for McKeesport in 1912. Other sources believe Tom is in the front row (second from right).
The same picture appears in "Golden Memories of Coulter, Alpsville and Osceola", a local history compiled by members of those communities in 1997. The picture appears on page 26-2, and identifies the players as below. Though this is the best identification I have, I should stress that there is no corroborating evidence (such as names written on the back of a photo).
(sitting) _____ Harris Sam Rebold Ginger Rebold _____ Harris _____ Harris