Ramba uchinyora ndima iyi - Dr. McHenry akabatana neUnited States Volunteers muna 1898, sachiremba anovhiya ane chinzvimbo chomukuru mukuru. Akashanda muHondo yeSpain neAmerica muCuba, kumukira kwePhilippine
, uye muChina. Muna 1903, Dr. McHenry akabudiswa muU.S. Medical Corps aine chinzvimbo chemajor.