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William Gibbs McAdoo (1863–1941) was Woodrow Wilson's first Secretary of the Treasury, serving from 1913 until 1918. In 1914 he married Wilson's daughter, Eleanor. A native of Georgia and graduate of the University of Tennessee, he had a business career in New York prior to his service in Wilson's cabinet, and after leaving the administration he eventually moved to California where he was elected to the U.S. Senate, serving a single term beginning in 1933. Biographical Directory of the United States Congress. Wikipedia.

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In February, 1914, the 52-year-old Secretary McAdoo dazzled social butterflies of Atlanta when he bounced around the dance floor in a demonstration of the tango -- the new (and scandalously tactile) craze from Argentina. New York Times story, February 16, 1914: query.nytimes.com/mem/archive-free/pdf?_r=1&res=9804E... Later in the year, McAdoo, a widower, married Eleanor Wilson, a daughter of President Woodrow Wilson, who was 26 years his junior. (They divorced in 1934.)

Josephus Daniels (1862–1948) was Secretary of the Navy during the Wilson administration. The North Carolina Democrat and long-time publisher of the Raleigh News & Observer also served as Ambassador to Mexico during the administration of Franklin D. Roosevelt. Daniels tended to be progressive in most matters other than race, and he remained a lifelong white supremacist. Wikipedia article. Josephus Daniels' family.

One of the gigantic 20 inch cannons designed by Rodman is visible at the far right, perhaps mounted on a railroad carriage. Total length of barrel, 243.5 inches; weight, 116,497 pounds, fired a 1,080 pound ball. On the left is a Monitor ironclad turret and its Dahlgren guns, as well as other Civil War vintage artillery such as a 30-pounder Parrott rifle. .