Mezue ahịrịokwu na-esonụ: Gosselin sonyeere Royal Navy na 2 August 1778 dị ka onye na-eso Captain Philip Boteler n'ụgbọ mmiri ọhụrụ ọhụrụ. O mechara soro Captain Boteler gaa n'ụgbọ mmiri na June 1779. N'ụbọchị 16 n'ọnwa Ọgọstụ, ndị agha Frans na ndị Spen jikọrọ aka nwụchie ụgbọ mmiri Ardent n'ebe dị nso na Portsmouth. Gosselin nọrọ ọnwa atọ dị ka onye mkpọrọ agha na Alençon. Mgbe a tọhapụsịrị ya, ọ sonyeere ụgbọ-of-the-line, ụgbọ mmiri ọkọlọtọ nke Rear-Admiral Sir Samuel Hood, na 11 Ọktoba 1780. Na "Barfleur" Gosselin sonyere n'ọtụtụ ihe omume dị mkpa nke American Revolution dịka akụkụ nke ụgbọ mmiri nke Admiral Sir George Rodney, gụnyere
Agha Fort Royal, Agha Chesapeake, na Agha Saint Kitts. Mgbe agha a gasịrị, a kpọfere Gosselin na frigate nke nwanne nwoke nke Rear-Admiral Hood, Captain Alexander Hood. Na "Champion" Gosselin sonyere na Agha nke Delaware Bay na Agha nke Saintes, ebe onye isi ndị agha France bụ François Joseph Paul de Grasse nyefere onwe ya. Gosselin nọkwa n'agha nke Mona Passage ebe otu ndị agha nọ n'okpuru Rear-Admiral Hood jidere ndị agha French na-agbapụ, ebe "Champion" jidere ndị agha French. N'ọnwa June 1782 Gosselin kpọfere ya na Captain Hood na frigate HMS "Aimable", na-eje ozi na ya ruo mgbe American mgbanwe biri na Treaty nke Paris na 1783. Ọ laghachiri n'ụlọ na 26 June 1783.