Whakaotihia te rerenga e whai ake nei: I whakahaua a Ridderhof ki te rohe o te Moananui a Kiwa i te Hune 1944 a ka whai mana i tana hoa akomanga o te kura rautaki, a William L. McKittrick hei rangatira o nga kaimahi, 1st Marine Aircraft Wing. I uru atu ia ki te parirau i te wā o ngā mahi hau i Emirau, ā, i muri mai ka uru atu ki ngā whawhai hau i
Ko nga Moutere o Horomona i raro i te rangatira a Ralph J. Mitchell. I whakawhiwhia a Ridderhof ki te Tohu Whetu Parahi me te Whawhai "V" mo tana mahi i te mutunga o te 1944.