c1900 photograph of the drug store owned by Frederick Elmer Sprague, "Fred", of Bangor, Maine. Perhaps the men shown are Fred and his son Adelbert Wells Sprague.
Identification on the reverse indicates that the store was at the corner of Clinton and Hammond Streets, though that may refer to Grace Methodist Church, which is also mentioned.
If you'd like to hear Rudy Vallee, who attended the University of Maine in the 1920s, sing the Maine Stein Song, advance to the 1.16 minute mark.
Finally, the unforgettable pep rally version, which must have Adelbert Wells Sprague grinning ear to ear:
If you have corrections and/or additions to the information above, please leave a comment or contact me directly.