Cheyrl,
Did John Clark have two wives ?
Spouse #1, N. P. Jane Fowler married Dec. 15th 1859 Fannin Co. TX.
Spouse #2, Sarah from the 1880 Burnet TX. Cenus ??
Was #1 murdered or #2 ????
Wow ! John was a ranger/ Texas Confederate officer then after the war a Texas ranger again. Then a sheriff ???
If he was in San Saba with his mother in law, Fowler
then in Mason in the mid 1870's then on to Burnet in the 1880's Why are you so sure that he is not the John Clark of the Mason County wars?
Just thinking out loud,
Gary D. Bray