Answer :
James Madison, Alexander Hamilton and John Jay. When signing they used the pseudonym Publius, in honor of Publius Valerius Publicola the ancient Roman consul.
One of the writer was alexander hamilton
Alexander hamilton wrote 51 of the 85 installments of The Federalist Papers.
In the federalist papers project, alexander Hamilton also acted as the main leader that supervise the whole project and considered as the person who made the largest contribution to the project.