<div class="description">
Annis, John; Burd, James; Norton, J W, field team; Critchley, E W, field team; Porr, George H, project manager; Millard, Julian, historian; Porr, George H, delineator</div>
Documentation compiled after 1933
<a rel="nofollow" class="external free" href="https://www.loc.gov/pictures/item/pa1749.sheet.00001a">https://www.loc.gov/pictures/item/pa1749.sheet.00001a</a>