After being unsuccessful for reelection in 1858, he returned to the House of Delegates in 1863 and 1864. Powell died in Amherst, Virginia, on June 10, 1874, and was interred in the family cemetery on his brother-in-law's estate called "Kenmore" near Amherst.
After failing to be re-elected in 1858, he returned to the House of Delegates in 1863 and 1864. Powell passed away in Amherst, Virginia, on June 10, 1874, and was buried in the family cemetery on his brother-in-law's estate called "Kenmore" near Amherst.