Underwood was a rare conservative Southern Democrat at the height of his influence in the first decades of the 20th century .
The house is the only known residence to survive relatively intact from the period of its association with Oscar Underwood .
Oscar Underwood was a rare conservative Southern Democrat at the height of Oscar Underwood 's influence in the first decades of the 20th century .
The house is the only known residence to survive relatively intact from the period of its association with Oscar Underwood .