Halbinsel-Feldzug
Ingalls helped establish effective supply depots at Yorktown, Eltham's Landing, Cumberland Landing, and White House Landing for McClellan's Army of the Potomac during the Peninsula Campaign. He skillfully evacuated White House Landing with all supplies, transportation and labor during the Seven Day's Battles. Consequently, he became the Chief Quartermaster of the Army of the Potomac in August 1862 following the Peninsula Campaign and performed his duties efficiently during the Northern Virginia and subsequent Maryland Campaigns, winning praise for his logistics skills.