Kathleen Beverly
<p>Robinson Ingels sculpting a fullscale
clay model for the Fountain
of Time, photograph, ca.
1920–1921
University of Illinois Archives,
</p>
ID: 6296, RS: 26/20/16).
Unknown photographer
ca. 1920–1921
Loredo Taft The Chicago Years p, 119 <a href="//commons.wikimedia.org/wiki/Special:BookSources/978-0-252-09646-4" title="Special:BookSources/978-0-252-09646-4">ISBN 978-0-252-09646-4</a>