Adamson's last address was Chicago, Illinois. On this basis it appears that our man is John Bartlet Adamson, born 1837 in Pennsylvania. He married Amelia Whitney, August 1882. It appears that there was a second marriage to Emily Moore, in Allegheny City, PA, Nov. 15, 1893. This explains earlier confusion over wife's names. He died in Chicago, Jan. 22, 1904.
So ... can we prove this beyond doubt?
This does indeed seem to be our guy. His address in as given in and 1898 newspaper matches that on the death record for John Bartlet Adamson. Some of the marriage details are puzzling. They may be wrong.The birth date as given in the newspaper matches John Bartlet.