As a young man in New York, Epstein met Dr. Adolph Oko, and they remained lifelong friends. The founder of the Hebrew Union College Library in Cincinnati, Oko came to England after retirement to pursue his studies of Spinoza. Epstein sculpted portraits of Oko and family, including this bust of his daughter Pearl.
Kamien-Kazhdan, Adina, Focus on the Collection: Jacob Epstein, The Israel Museum, Jerusalem, 2002
Focus on the Collection: Jacob Epstein, Israel Museum, Jerusalem, 23/08/2002 - 28/04/2003