↑"Lifetime Membership Prize". New York Times. December 19, 1915. Retrieved 2013-12-12. The Lifetime Membership Prize in the National Arts Club has been awarded to Dorothea Warren O'Hara. ...
↑The Biography & Genealogy Master Index lists her birth year as 1875 and her death year as 1963. The Social Security Death Index uses 31 August 1873 and May 1972 and the Metropolitan Museum of Art uses "Dorothea Warren O'Hara (American, 1873–1972)".
↑ 3.03.1Ruckstuhl, Fred Wellington (1917). "Rise of American China Painting". Art World. Retrieved 2013-12-12. For only after long years of strenuous study and practical experimentation at home and abroad, came to her recognition of 'greatest accomplishment in Keramics,' in form of a 'Life Membership in the National Arts Club,' to be capped by a gold medal at the Panama-San Francisco Exhibition, and purchase of two of her enamel jars by the Royal Museum of Tokyo.
↑ 4.04.14.2Leonard, Anna B.; Robineau, Adelaide Alsop (1966). "Mrs. Dorothea Warren O'Hara". Keramic Studio. Retrieved 2013-12-12. [she married] in New York and had become Mrs. O'Hara ... Mrs. O'Hara was awarded Life Membership in the National Arts Club of New York for what she has accomplished in the development of keramics, also a gold medal at the Panama-Pacific Exposition. ... She is now president of the Keramic Society of Greater New York ... She is also the present president of the New York National Society of Craftsmen, and a director of the Art Alliance of America.