Percy Sloan photograph collection inventory checklist for suburban buildings, 1930s ?
Sloan, Percy H. (Percy Haydn), 1867-
1930/1939
<a rel="nofollow" class="external free" href="https://collections.carli.illinois.edu/cdm/compoundobject/collection/nby_chicago/id/479">https://collections.carli.illinois.edu/cdm/compoundobject/collection/nby_chicago/id/479</a>