I te Pipiri 1929, ka uru atu a Howard ki te whakaekenga a te United States ki Haiti
, i reira ko ana mahi mo nga tau e whai ake nei ko te rangatira o te pirihimana me te rangatira o te tari, Port au Prince, Haiti. I whakahokia ia ki te U.S. a ka riro i a ia nga mahi me te First Battalion, Seventh Marines, tae noa ki Akuhata 1934, i taua wa ka tukuna ano ia ki te Tumuaki Marine Corps. Mai i te marama o Akuhata 1934 tae noa ki te Pipiri 1938, i mahi ia hei kaitohutohu whakahaere, Te Rōpū Whakahaere me te Whakaakoranga, Te Whare Matua o Marine Corps.