Uncle John rose with the morning sun on April 23, 1893 and made a bee-line for the Horticultural Building on the fairgrounds of the World’s Columbian Exposition in Jackson Park, Chicago. The opening of the Fair—when President Cleveland would push the button to unfurl the flags along the White City rooftops and release the water to the glorious fountains—was still nine days away. Today, however, the Chief of the Horticultural Department was expecting a throng of visitors to his [...]