Hand-colored photo postcard of the steamboat “Princess” on the Ocklawaha River by William Henry Jackson (1843-1942). Jackson was a famous American painter, explorer, Civil War veteran and photographer. In 1899, Jackson visited the Ocklawaha River and Silver Springs aboard the small steamboat Princess and produced a series of photographs. Some photos were used for hand-colored postcards like this one which was later mailed in May of 1907 from Deland, Florida to a “Mrs. D.L. Slough” in Greensburg, Pennsylvania. Interestingly, Jackson was the great-great nephew of Samuel Wilson who served in both the American Revolution and the War of 1812, and was the inspiration for the character “Uncle Sam” (SRM2002-49-608).