Fred McClure from Texas
When first elected as president George W. Bush was the Governor of Texas.
I suspect you mean 1836, not 1863, since the last President of Texas left office in February of 1846, after Texas became a state of the United States. David G. Burnet was elected Interim President in 1836 by the convention that assembled to issue Texas' Declaration of Independence from Mexico. Later that year Sam Houston was elected by popular vote to be the first President of Texas. He was also the third President of Texas (the Texas Constitution did not have term limits, but it did not allow anyone to serve consecutive, or back to back, terms).
Sam Houston -- First Governor of Tennessee, then President of Texas, then Governor of Texas
Mirabeau B. Lamar
Mirabeau B. Lamar was the first vice-president elected by the people of Texas, Zavala de Lorenzo was chosen by the constitutional convention to serve as interim vice-president until elections could be held.
Dwight Eisenhower was the first US president to be born in Texas. He did not live there very long.
He was living in Texas when he was elected.
Sam Houston
Barack Obama was the first Black president elected.
President George W. Bush is the US president that was twice elected the governor of Texas. He served as governor from January 17, 1995 to December 21, 2000.
Barak Obama was first elected as President of the United states in 2008 and was re-elected as president in 2012