This was Solvay's train station, located, of course, on Milton Avenue. The station would have been on the north side of Milton; the terrain on the left suggests a location between Orchard and Woods roads. If anyone knows for sure, please contact me at the email address at the bottom of the page.
The photo dates from 1909. How long the station was in operation I don't know. Several years ago the village produced a newsletter written and edited by Mario Tomasetti, who identified the man on the left in this photo as Charles Hall, who was Solvay's first and only station manager. Hall became mayor of the village in the 1930s. (I looked at this photo several times before I noticed that the blur on the left was a horse-drawn wagon.)