Henry Bannister Grant was born on March 12, 1837, in New York to Loring and Betsey Grant. His father was an editor and Methodist Episcopal clergyman who owned $4,000 of real estate and $700 of personal property by 1860. The family moved to Ontwa, Michigan, in the 1840s, and Grant attended school there. He moved to Louisville, Kentucky, around 1853 and worked as a banker there.
Grant sided with the Union during the Civil War. On November 27, 1861, he received a commission as a captain in Company F of the 27th Kentucky Infantry. According to one account, he “served with distinction till the close of the war,” and he served as acting inspector general in Kentucky during the winter of 1864-65.
Grant returned to Louisville after the war, and he married Maria Richardson around 1864. They had at least three children: Rebecca, born around 1864; Ella, born around 1867; and William, born around 1879. He resumed his work as a bank teller, and by 1870, he owned $9,000 of real estate and $5,000 of personal property. He also employed at least one Black domestic servant. He became a prominent member of the Free Masons, serving as Grand Secretary from 1887 until his death. He also served as editor of the Masonic Home Journal. He applied for a federal pension in November 1905 and eventually secured one. He remained in Louisville for the rest of his life, and he died there of pneumonia on August 26, 1912.