”Ephraim Lombard Cheever, born in Boston, Sept. 5, 1831; removed to St. Louis, Missouri, where he married Ellen Ware. He was killed, Feb. 4, 1858, on the steamboat Col. Crossman, then commanded and in part owned by his brother Joshua Cheever, bound from New Orleans to St. Louis. She exploded her boiler when about one mile above New Madrid, and then took fire. Twenty lives were lost. He had two children who died in infancy. His widow afterward married W. P. Armstrong.”

Source:  The New England Historical and Genealogical Register, Vol. 38, by Henry Fits-Gilbert Waters and The New England Historic Genealogical Society. Published at the Society’s House, 18 Somerset Street, Boston, 1884, page 193