George Hume Steuart was born on August 24, 1828 into a family of Scots ancestry in Baltimore.
The eldest of nine children, he was raised at his family's estate in West Baltimore, known as Maryland Square, located near the present-day intersection of Baltimore and Monroe Streets.
The Steuart family were wealthy plantation owners and were opposed to the abolition of slavery.

The Steuarts shared a long tradition of military service.
He was the son of Major General George H. Steuart, of Anne Arundel County, Maryland, who served in the War of 1812, and with whom he is often confused.
Baltimore residents referred to the father and son as "The Old General" and "The Young General."
The elder Steuart inherited approximately 2,000 acres (8.1 km²) of land in around 1842, including a farm at Mount Steuart, and around 150 slaves, a high number in the Upper South.

Steuart was the grandson of Dr. James Steuart, a physician who served in the American Revolutionary War, and the great-grandson of Dr. George H. Steuart, a physician who emigrated to Maryland from Perthshire, Scotland, in 1721, and was lieutenant colonel of the Horse Militia under Governor Horatio Sharpe.
George Hume Steuart was born on August 24, 1828 into a family of Scots ancestry in Baltimore. The eldest of nine children, he was raised at his family's estate in West Baltimore, known as Maryland Square, located near the present-day intersection of Baltimore and Monroe Streets. The Steuart family were wealthy plantation owners and were opposed to the abolition of slavery. 
The Steuarts shared a long tradition of military service. He was the son of Major General George H. Steuart, of Anne Arundel County, Maryland, who served in the War of 1812, and with whom he is often confused. Baltimore residents referred to the father and son as "The Old General" and "The Young General." The elder Steuart inherited approximately 2,000 acres (8.1 km²) of land in around 1842, including a farm at Mount Steuart, and around 150 slaves, a high number in the Upper South.
Steuart was the grandson of Dr. James Steuart, a physician who served in the American Revolutionary War, and the great-grandson of Dr. George H. Steuart, a physician who emigrated to Maryland from Perthshire, Scotland, in 1721, and was lieutenant colonel of the Horse Militia under Governor Horatio Sharpe.
George H. Steuart (brigadier general)