De 146e New York nam deel aan de veldslagen van Fredericksburg, Chancellorsville, Gettysburg, Williamsport, Wilderness Tavern, Spotsylvania Court House, North Anna, Totopotomy Creek
, Cold Harbor, Belegering van Petersburg, Weldon Railroad, White Oak Ridge, Five Forks, Rappahannock Station, Bristoe Station, White Oak Swamp, Popular Springs Church, Hatcher's Run en Appomattox Court House.