"31"^^ . . . . "31st Indiana Infantry Regiment"@en . . . "--09-15"^^ . . . . . . . . . . . . "The 31st Regiment Indiana Infantry was an infantry regiment that served in the Union Army during the American Civil War."@en . . . . . . "The 31st Regiment Indiana Infantry was an infantry regiment that served in the Union Army during the American Civil War."@en . . . . . .