District of Columbia Public Library Commons
This photo is from the White House Easter Egg Roll, circa 1905. It was apparently taken not long after passage of the All Americans Must Wear Hats Act, a controversial piece of legislation that President Theodore Roosevelt signed despite not being much of a hat-wearer himself. It was repealed during World War I, to the great relief of a nation oppressed by mandatory hat-wearing, as part of the Headgear To Wargear program, under which hats were cut into pouches in which soldiers could carry spare ammunition.
