While there is no guarantee this is a Kansan, just because of the location the photo probably was taken, I do have a strong possibility of giving you a person of interest to research.
The soldier's name is Daniel Read Anthony, who joined, as a major, the 7th Kansas volunteer regiment of Cavalry. Age 37 at the time, he later was promoted to Lt. Colonel, and suceeded Charles R. Jennison upon CRJ's retirement in 1862. Daniel also had a younger brother in the same unit, and they were brothers to a more famous Anthony, Susan B! I found several pics of DRA in findagrave (he died in 1904, and two of the pics are of him in later life). A fourth image (I'd guess in his 40's or 50's) is found in a FindaGrave detail of a cenotaph of his in his native state of Massachusetts.
Take a peek at these pics, and tell us whether you think this might be your handsome fella? Wow, such a stylin' handlebar 'stash he sports!