Katherine Emmons Force Spencer (March 12, 1891 – September 8, 1956) was an American real estate investor and socialite.

[1] Katherine Emmons Force was born on March 12, 1891, in Brooklyn, New York.

[3] On December 6, 1922, Force was married to Lorillard Suydam Spencer (1883–1939) at the home of her sister, then Mrs. William Karl Dick, at 7 East 84th Street.

[5] Together they had two sons and a daughter: Later in her life, she became a real estate investor and was a member of the zoning board for Newport.

[11] She died of a heart attack at her cottage, Chasteullux, in Newport, Rhode Island, on September 8, 1956.