Whakaotihia te rerenga e whai ake nei: I whakauruhia a Grindlay mai i Boonville i te Mahuru 8, 1862 mo te toru tau o te ratonga i roto i te Union Army. I uru ia ki te Kamupene D o te 146th New York Infantry hei rangatira. I te marama o Mei me te Pipiri o te tau 1864 i uru te ope ki te pakanga a te Tiamana Ulysses S. Grant i Virginia. I te Pakanga o te Moana i te wiki tuatahi o Mei, he nui te mate o te 146th. I mate te kaihautū o te rēhimene me te tuarua ki te rangatira i te mahi, ka waiho a Grindlay hei rangatira matua. I whakawhiwhia e ia te whakahau o te ope, a ka arahina e ia i roto i te Pakanga o Spotsylvania Court House i muri tonu mai. I whakateiteitia a Grindlay ki te rangatira, i arahi ia i te 146 mo te toenga o te pakanga, tae atu ki nga pakanga o North Anna,
Ko Totopotomoy Creek, me Cold Harbor.