 Nyora kupfuurira kweiyi ndima - Musi waAugust 9, 1861, Martindale akagadzwa brigadier general wevanozvipira muUnion Army, uye akapihwa basa rekutungamira brigade mukati meUnion Army yePotomac. Gare gare akapinda muhondo dzose dzePeninsula Campaign muV Corps. Pashure pokubva paMalvern Hill, akapiwa zita rekuti Major General of Volunteers, uye akagadzwa kuva Military Governor weWashington, D.C., chinzvimbo chaakabata kubva munaNovember 1862 kusvika May 1864. Pashure pacho akadzokera kubasa romumunda, achirwa neXVIII Corps muBermuda Mazana Makumi Makumi Makumi. Muna September 1864 akasiya basa rake nemhaka yeutano husina kunaka. 