Henry David Cooke was an American financier, journalist, railroad executive, and politician. He was the younger brother of Philadelphia financier Jay Cooke. A member of the Republican political machine in post-Civil War Washington, D.C., Cooke was appointed first territorial governor of the District of Columbia by Ulysses S. Grant.

Jay Cooke was an American financier who helped finance the Union war effort during the American Civil War and the postwar development of railroads in the northwestern United States. He is generally acknowledged as the first major investment banker in the United States and creator of the first wire house firm.