Inland Waterways Commission Recommendations... Inquiries in Progress Letter to the President, October 5, 1907: ..."3. We are of opinion that the conference may best be held in the national capital next winter, and that the conferees should comprise the governors of all our States and Territories, a limited number of delegates to be appointed by each governor, and representatives from leading organizations of both State and national scope engaged in dealing with natural resources or with practical questions relating thereto... In his Memphis address on October 4 the President announced the intention of calling such a conference, and on November 13 he issued invitations to the governors of the States and Territories to meet at the White House May 13–15, 1908;..."
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"Historical Timeline". National Governors Association Centennial. Archived from the original on October 4, 2012. Retrieved October 27, 2008.
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nga.org
FAQArchived December 14, 2013, at the Wayback Machine National Governors Association website, "How is NGA funded?" Retrieved December 8, 2013.
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"Historical Timeline". National Governors Association Centennial. Archived from the original on October 4, 2012. Retrieved October 27, 2008.