 On February 26, 1867, President Andrew Johnson nominated Littlejohn for appointment to the grade of brevet brigadier general of volunteers, to rank from March 13, 1865, and the United States Senate confirmed the appointment on March 2, 1867.He moved his residence to Buffalo, New York until 1867, when he moved back to Oswego.Littlejohn wanted to afford Oswego the growth possible by a rail connection to a major port.