Eva Van Cortlandt Morris married Emile McDougall Hawkes in 1908. The couple divorced in 1922. Eva Van Cortlandt Morris Hawkes also had a thirteen acre oceanside estate in Bar Harbor, Maine. She participated in numerous charities and donated decorative arts objects to the Cooper Union, Metropolitan Museum of Art and Philadelphia Museum of Art.

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<ref name=CH>{{cite web |url=https://collection.cooperhewitt.org/people/18057699/ |title=Mrs. Morris Hawkes |author=Cooper Hewitt, Smithsonian Design Museum |accessdate=16 April 2024 |publisher=Smithsonian Institution}}</ref>