Employed by father’s merc. firm Riggs, Taylor & Company. New York City; partner banking firm Corcoran & Riggs, Washington, District of Columbia, 1840-1848, firm took up loans required by United States Government to finance Mexican War, bought Corcoran’s interest, 1854, firm became known as Riggs & Company (Riggs National Bank since 1896), dir, until 1881. Member board aldermen District of Columbia.
Chairman of commission to present to the United States Congress a petition for an investigation into the conduct of the Board Public Works, 1873. Built and owned Riggs House (hotel). An organizer Washington and Georgetown Railroad Company.
Trustee Corcoran Gallery of Art, Peabody Education Fund. Treasurer Mount Vernon Ladies’ Association of the Union.