from the excellent Online Encyclopedia of Washington State History an Olmsted Park Cybertour with history, images and information about the numerous Seattle parks designed by the great landscape architect between 1903 and 1908.

(this correction from Olmstead maven Jonathan Skinner--

"I just noticed on your blog you have the Seattle parks as designed by “the great landscape architect,” but note it’s his nephew who did the work, who had joined the firm in 1893. John Charles Olmsted and Olmsted’s own son, Frederick Law, effectively ran the firm from the mid-1890s on—from the point at which Olmsted himself began to succumb to Alzheimers. Olmsted lived out his last five years at the MacLean asylum in Waverly, Mass., on grounds he had himself designed... Many “Olmsted” parks are actually by the Olmsted firm, some done as late as 1950. The great Olmsted went out on August 27, 1903.")