From the National Statuary Hall. Left is Nathanael Greene (by Henry Kirke Brown; donated in 1870), and the right is Roger Williams (by Franklin Simmons; donated in 1872).  Per <a rel="nofollow" class="external text" href="http://www.aoc.gov/cc/photo-gallery/nsh_statues.cfm">here, on the Architect of the Capitol site</a>.
<div class="fn value">
Jarvis, J. F. (John F.), b. 1850 -- Publisher</div>
<p>Coverage: 1870?-1895?.
Source Imprint: Washington, D.C. : John F. Jarvis, 1870?-1895?.
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Digital item published 1-25-2006; updated 2-13-2009.
This image is available from the <a href="//commons.wikimedia.org/wiki/New_York_Public_Library" title="New York Public Library">New York Public Library</a>'s Digital Library under the digital ID G90F093_071F: <a rel="nofollow" class="external text" href="http://digitalgallery.nypl.org/nypldigital/id?G90F093_071F">digitalgallery.nypl.org</a> → <a rel="nofollow" class="external text" href="https://digitalcollections.nypl.org/search/index?keywords=G90F093_071F">digitalcollections.nypl.org</a>