Elizabeth Merwin Page Harris (1889–1969) was an American novelist, best known for her bestselling 1939 novel The Tree of Liberty, which was adapted into the 1940 film The Howards of Virginia.
Raised in New York, she graduated from Vassar College in 1912, and obtained a masters from Columbia University in 1914.
She was a school teacher in Natick, Massachusetts, from 1914 to 1916, and worked for the American Red Cross, Y.M.C.A.
Her novel Wilderness Adventure (1946) was based on the true story of explorer John Peter Salling.
Page married Herbert Taylor Harris in 1954, and died in Oaxaca, Mexico on March 11, 1969.