Many Federalist beliefs in the American system of government were incorporated by

a. John Marshall.

c. Thomas Jefferson.

b. Abigail Adams.

d. Aaron Burr.

Many Federalist beliefs in the American system of government were incorporated by a) John Marshall. The four federalists who influenced the American system of government were John Marshall, James Madison, Alexander Hamilton and John Jay. Federalists believed in the Constitution of the United States to replace the Articles of Confederation, which they viewed as weak.