[4] Eleanor Walter was born in 1910 in San Francisco, California to a prominent Jewish family active in Congregation Emanu-El.

[7] Edgar Melville Walter, was her paternal uncle and he was an architectural sculptor and painter, who studied under Rodin.

Between 1922 and 1923, she attended classes at the California School of Fine Arts (CSFA) on Saturday mornings, before she decided to formally study there.

[6][17] Sinton had lived at 2520 Divisadero Street, in a Tudor Revival house built in 1933.

[20] She also has extensive files held at the Archives of American Art (a Smithsonian Institution), and the Bancroft Library.