[1] His paternal grandfather, Robert, emigrated from Ireland with family, and his father Hugh was born on their voyage to America in 1789.
[2] Calhoun moved to Nashville, Tennessee with his parents before 1812, and his father returned to Pennsylvania to serve in the War of 1812.
"[1] Calhoun returned to Nashville in 1835, where he managed his father's jewelry store at 16 Public Square.
[1] He also designed cutlery like salt spoons,[4] and tea sets including "pitchers, goblets, julep cups, ladles, flatware.
[2] Calhoun's portrait, done by Washington Bogart Cooper, was given to the Odd Fellows' Grand Lodge in 1896.
[11] His daughter Mary bequeathed her estate to Vanderbilt University for the construction of Calhoun Hall in 1918.