This Olmsted boulevard was designed in 1910 as Jefferson Boulevard, the entrance to Jefferson Park. It runs about 1.2 miles from Beacon Avenue S and S Alaska Street in the southwest to S Winthrop Street in the northeast, which also forms part of the park boulevard. After crossing Martin Luther King Jr. Way S and Rainier Avenue S, it continues on as S Mount Baker Boulevard, ending at Mount Baker Park.
In 1914, it was renamed Cheasty Boulevard after E.C. (Edward) Cheasty, who died that year. He had been police commissioner, commissioner of the Alaska–Yukon–Pacific Exposition, and a member of the park board from 1907 to 1910 and 1912 to his death, according to the Don Sherwood Park History Files. He also ran Cheasty’s Store, a downtown haberdashery, from 1888 until his death.
Speaking of his death, it sadly appears that it was due to suicide. He fell from the 10th floor of the Washington Hotel — the same hotel in which fellow businessman Frank B. Hubbell killed himself in 1905.