Plase tell us which treaty you mean then maybe we can answer your question.
The Harris Treaty ended Japan's isolationism. However, it was not negotiated by Commoder Perry. It was negotiated by Townsend Harris.
Jays Treaty
Thomas Pinckney
John Jay
The Treaty of Paris included a provision that granted the Americans a significant cession of land. The treaty was negotiated in 1783.
What cabinet agency does most of the work when a treaty is negotiated?Read more: What_cabinet_agency_does_most_of_the_work_when_a_treaty_is_negotiated
strippersz
The Harris Treaty ended Japan's isolationism. However, it was not negotiated by Commoder Perry. It was negotiated by Townsend Harris.
The treaty was negotiated and signed in Brest, now in Belarus.
Ghent
John Hay
probibly
Thomas Pinckney negotiated a treaty with Spain that defined the Spanish-US boundary line and Mississippi River navigation rights.
Jays Treaty
Benjamin Franklin
Thomas Pinckney
John Jay