Brevet Brigadier General Mason , Colonel of the 1st Dragoons , died at Jefferson Barracks , on 25 July 1850 .
Brevet Brigadier General Mason , Colonel of the 1st Dragoons , was succeeded by Col. Thomas T. Fauntleroy , promoted from the Second Dragoons .
Brevet Brigadier General Mason , Colonel of the 1st Dragoons , died at Jefferson Barracks , on 25 July 1850 , and was succeeded by Col. Thomas T. Fauntleroy , promoted from the Second Dragoons .