Al Hopson

<strong>Quelle:</strong> Hopson, George, et al - <a rel="nofollow" class="external free" href="https://ntrs.nasa.gov/search.jsp?N=0&amp;Ntk=All&amp;Ntt=19900019281&amp;Ntx=mode%20matchallpartial">https://ntrs.nasa.gov/search.jsp?N=0&amp;Ntk=All&amp;Ntt=19900019281&amp;Ntx=mode%20matchallpartial</a>

<strong>Quelle:</strong> - This file was contributed to Wikimedia Commons by <a href="https://www.wikidata.org/wiki/Q88013085" class="extiw" title="d:Q88013085"><span title="historical society in Chapel Hill, North Carolina">Chapel Hill Historical Society</span></a> as part of a cooperation project. The donation was facilitated by the <a href="https://en.wikipedia.org/wiki/Digital_Public_Library_of_America" class="extiw" title="w:Digital Public Library of America">Digital Public Library of America</a>, via its partner <a href="https://www.wikidata.org/wiki/Q83878492" class="extiw" title="d:Q83878492"><span title="regional digital library in the United States">North Carolina Digital Heritage Center</span></a>.<span style="text-align:left"> <ul><li><a rel="nofollow" class="external text" href="https://lib.digitalnc.org/record/22374">Record in source catalog</a></li> <li>DPLA identifier: <a rel="nofollow" class="external text" href="https://dp.la/item/0079e562a497df98da2b2bf6a5740d22">0079e562a497df98da2b2bf6a5740d22</a></li></ul></span>

<strong>Quelle:</strong> - This file was contributed to Wikimedia Commons by <a href="https://www.wikidata.org/wiki/Q88013085" class="extiw" title="d:Q88013085"><span title="historical society in Chapel Hill, North Carolina">Chapel Hill Historical Society</span></a> as part of a cooperation project. The donation was facilitated by the <a href="https://en.wikipedia.org/wiki/Digital_Public_Library_of_America" class="extiw" title="w:Digital Public Library of America">Digital Public Library of America</a>, via its partner <a href="https://www.wikidata.org/wiki/Q83878492" class="extiw" title="d:Q83878492"><span title="regional digital library in the United States">North Carolina Digital Heritage Center</span></a>.<span style="text-align:left"> <ul><li><a rel="nofollow" class="external text" href="https://lib.digitalnc.org/record/22374">Record in source catalog</a></li> <li>DPLA identifier: <a rel="nofollow" class="external text" href="https://dp.la/item/0079e562a497df98da2b2bf6a5740d22">0079e562a497df98da2b2bf6a5740d22</a></li></ul></span>

<strong>Quelle:</strong> - This file was contributed to Wikimedia Commons by <a href="https://www.wikidata.org/wiki/Q88013085" class="extiw" title="d:Q88013085"><span title="historical society in Chapel Hill, North Carolina">Chapel Hill Historical Society</span></a> as part of a cooperation project. The donation was facilitated by the <a href="https://en.wikipedia.org/wiki/Digital_Public_Library_of_America" class="extiw" title="w:Digital Public Library of America">Digital Public Library of America</a>, via its partner <a href="https://www.wikidata.org/wiki/Q83878492" class="extiw" title="d:Q83878492"><span title="regional digital library in the United States">North Carolina Digital Heritage Center</span></a>.<span style="text-align:left"> <ul><li><a rel="nofollow" class="external text" href="https://lib.digitalnc.org/record/22374">Record in source catalog</a></li> <li>DPLA identifier: <a rel="nofollow" class="external text" href="https://dp.la/item/0079e562a497df98da2b2bf6a5740d22">0079e562a497df98da2b2bf6a5740d22</a></li></ul></span>

<strong>Quelle:</strong> - This file was contributed to Wikimedia Commons by <a href="https://www.wikidata.org/wiki/Q88013085" class="extiw" title="d:Q88013085"><span title="historical society in Chapel Hill, North Carolina">Chapel Hill Historical Society</span></a> as part of a cooperation project. The donation was facilitated by the <a href="https://en.wikipedia.org/wiki/Digital_Public_Library_of_America" class="extiw" title="w:Digital Public Library of America">Digital Public Library of America</a>, via its partner <a href="https://www.wikidata.org/wiki/Q83878492" class="extiw" title="d:Q83878492"><span title="regional digital library in the United States">North Carolina Digital Heritage Center</span></a>.<span style="text-align:left"> <ul><li><a rel="nofollow" class="external text" href="https://lib.digitalnc.org/record/22374">Record in source catalog</a></li> <li>DPLA identifier: <a rel="nofollow" class="external text" href="https://dp.la/item/0079e562a497df98da2b2bf6a5740d22">0079e562a497df98da2b2bf6a5740d22</a></li></ul></span>

<strong>Quelle:</strong> - This file was contributed to Wikimedia Commons by <a href="https://www.wikidata.org/wiki/Q88013085" class="extiw" title="d:Q88013085"><span title="historical society in Chapel Hill, North Carolina">Chapel Hill Historical Society</span></a> as part of a cooperation project. The donation was facilitated by the <a href="https://en.wikipedia.org/wiki/Digital_Public_Library_of_America" class="extiw" title="w:Digital Public Library of America">Digital Public Library of America</a>, via its partner <a href="https://www.wikidata.org/wiki/Q83878492" class="extiw" title="d:Q83878492"><span title="regional digital library in the United States">North Carolina Digital Heritage Center</span></a>.<span style="text-align:left"> <ul><li><a rel="nofollow" class="external text" href="https://lib.digitalnc.org/record/22374">Record in source catalog</a></li> <li>DPLA identifier: <a rel="nofollow" class="external text" href="https://dp.la/item/0079e562a497df98da2b2bf6a5740d22">0079e562a497df98da2b2bf6a5740d22</a></li></ul></span>