 Nyorai kuenderera mberi kweiyi ndima - Kutumwa kwaKnowles kwakasimbiswa musi wa 28 Chivabvu 1776 uye akagadzwa semutevedzeri wechipiri we28-gun, ipapo pasi pekutungamira kwaKaputeni Charles Thompson. Akashanda ari muBoreas paPort Royal, uye gare gare paNorth American Station paNew York pashure peHondo yeBunker Hill. Akakwidziridzwa kuva lieutenant wokutanga uye muna 1776 akatamira mungarava ye50-gun, iyo yakanga iri panguva iyoyo mureza weVice-Admiral Molyneux Shuldham. Iye akapfuurira kuona basa pazvikepe zvakapfava paNew York neRhode Island. Knowles akadzokera kuBritain ari mungarava muna January 1777 kuti aone baba vake, avo vakanga vari kuderera utano. Achiri kumusha akashandisa mukana wacho kugadzirira bhuku rake rokutanga rezviratidzo, A Set of Signals for a Fleet on a Plan Entirely New, kuti ribudiswe, asati adzokera kuAmerica muzhizha ra1777. Bhuku racho, rakabudiswa gore iroro, rakapa nzira itsva dzokubhururuka nezviratidzo zvine nhamba, uye kugadzirwa kwemaitiro ayo mutsara wetsika yehondo waizosiyiwa kana kurwa kwatanga. Iine mhete yechokwadi yaNelson pamusoro payo. ..bhuku racho rose rinoratidzika kuva kubudirira kunoshamisa kune murume wechiduku wemakore makumi maviri nemana - kunyange nehutungamiriri hwaNelson pazera remakore makumi maviri mupfungwa... zvose zvinoratidza Knowles semutsva wechokwadi. Knowles akataura kuti akanga ataura basa racho kuna Ishe Howe, uye kuti nzira dzaHowe paGlorious First yaJuneyakaratidza dzidziso dzaKnowles pamusoro penzira dzinoshanda dzomumvura. Rufu rwababa vake musi wa 9 Zvita gore iroro uye kutevera kwake senhengo yechipiri yebaronet kwakaita kuti Knowles adzokere kuEngland zvakare. 