George Henry Thomas was an American general in the Union Army during the American Civil War and one of the principal commanders in the Western Theater.

In the United States, Southern Unionists were white Southerners living in the Confederate States of America opposed to secession. Many fought for the Union during the Civil War. These people are also referred to as Southern Loyalists, Union Loyalists, or Lincoln's Loyalists. Pro-Confederates in the South derided them as "Tories". During Reconstruction, these terms were replaced by "scalawag", which covered all Southern whites who supported the Republican Party.