 Walker and Percy settled on two adjacent estates in Huntsville, Alabama, and named their sons after one another.The sons of Thomas George Percy helped develop the Mississippi Delta into the leading cotton-producing area in the world.William Alexander Percy, the youngest son, became rich before the Civil War and married Nana Armstrong, a cousin of George Armstrong Custer and granddaughter of General James (Trooper) Armstrong, a hero of the War of 1812.