Stephen F. Austin.
us won the war with mexico
It was called a Land Grant, or Royal Grant.
The United States gained land from Mexico to build a planned rail line
It was sold.
The United States gained land from Mexico to build a planned rail line
Moses Austin received his land grant from Mexico in 1820.
Moses Austin received his land grant from Mexico in 1820.
The title of the land that the US gained from Mexico from the war was known as the Mexican Cession. If you mean the chunk of land US bought from Mexico to build railroads that would be the Gadsden Purchase.
It included today's southern New Mexico and Arizona.
640 acres
Micheal Jackson
There were significant land gains; the United States gained California, New Mexico, Texas, and later on, the Gadsden Strip.