Grafton D. Cushing

Post-political career After leaving electoral politics, Cushing entered the banking business. During World War I, he headed a "semi-official commission of nine American business men" invited to the United Kingdom to inspect British military facilities. He encouraged the American government to provide additional Liberty Loan support to the British government. He was one of the founding trustees of the Isabella Stewart Gardner Museum, which was established by Amory Gardner's aunt.

A socialite and a dandy, Cushing was a member of the Knickerbocker Club of New York and the Somerset Club of Boston. When an overdressed Loring Young visited then-Vice President Calvin Coolidge in Washington, D.C., Coolidge joked, "Hello, Loring, seen Grafton Cushing lately?"

In 1911, the New York Times reported on Cushing's attempt to build a stone wall separating his family's Newport beach house from that of Henry Clews. Cushing and his brother were reportedly irritated by the frequent screaming of Clews' toddler grandson.

In 1929, Cushing moved to New York City. He died on May 31, 1939.