Nwanne ya nwoke, John Q. Marr (1825<unk>1861), kụziri na Virginia Military Institute (VMI) dị ka osote prọfesọ nke mgbakọ na mwepụ na usoro mgbe ọ gụsịrị akwụkwọ, mana ọ laghachiri n'ụlọ na 1848 iji lekọta nne ya na ụmụnne ya nwanyị Sarah / Sally (1819-1895), Margaret (1830-1903), Frances, na Jane (1840-1927). Ụmụnne ya, Thomas Scott Marr (1830-1897) na James Ripon Marr (1832-1879), hapụrụ ụlọ site na 1850. Nwanne ya nwoke, Robert Athelstan Marr (1823-1854), bụ onye Lieutenant na United States Navy; o sonyere na agha Mexico na America; gbara egbe mbụ na mwakpo ụgbọ mmiri na Vera Cruz
; e tufuru ya n'Oké Osimiri Caribbean ya na ndị nile nọ n'ụgbọ mmiri USS "Albany", n'October, 1854.