Tex. Const. art. XVI, § 9
No Forfeiture of Residence by Absence on Public Business
Effective Feb 15, 1876(Feb. 15, 1876.)State of Texas
Absence on business of the State, or of the United States, shall not forfeit a residence once obtained, so as to deprive any one of the right of suffrage, or of being elected or appointed to any office under the exceptions contained in this Constitution.
(Feb. 15, 1876.)