I te marama o Mei 1862, i muri i te rerenga o Norfolk e nga ope o te Tonga i te Peninsula Campaign, i awhina ia i te hanganga o nga paruru o Richmond i te awa o James i te taha o Drewry's Bluff
He aha? I muri tata mai, i arahi ia i tana pereti i te Pakanga o Seven Pines, me te Pakanga o Malvern Hill. Whai muri i te parenga o Richmond, i tohaina te piriti o Mahone mai i te wehenga a Huger, ki te wehenga a Richard H. Anderson ka whawhai i te pakanga tuarua o Bull Run, i reira i werohia ai a Mahone ki te uma i a ia e arahi ana i tana piriti i roto i te utu puta noa i te Chinn Ridge. He iti te rahi, he iti te taumaha, he iti noa iho te taumaha, i tapaina ia ko "Little Billy". Ka rite ki te kī a tētahi o ana hōia, "He hōia ia, ahakoa he iti noa iho ōna waewae". I te mahi a Otelia Mahone i Richmond hei kaitiaki, i te wa i tukuna mai ai e te Kawana o Virginia a John Letcher te korero kua whara a Mahone i te Tuarua o Bull Run, engari he "whara kikokiko" noa iho tana i whiwhi ai. E kiia ana kua whakautu ia "Kei te mohio au he mea nui tenei na te mea kaore he kikokiko a William".