This street is named for Dr. Thomas Taylor Minor (1844–1889), who came to Seattle in 1883 from Port Townsend, where he had lived since 1868 and whose mayor he had been in 1880 and 1881. He was one of the founders of the Seattle, Lake Shore and Eastern Railway in 1885 and became mayor of Seattle from 1887 to 1889. He drowned off Whidbey Island while on a duck-hunting trip on December 2, 1889. The other fatalities were George Morris Haller, brother of Theodore Haller for whom Haller Lake is named, and his brother-in-law, Lewis Cox.
Minor Avenue begins at Broadway just north of Jefferson Street and goes ⅔ of a mile northwest to Pine Street. Resuming on the other side of Interstate 5 at Olive Way, it goes another ⅔ of a mile northwest, then north, to Mercer Street, having become Minor Avenue N north of Denny Way. After a two-block stretch from Roy Street to Aloha Street, it appears again as Minor Avenue E at E Newton Street, and goes nearly ½ a mile to its end at E Roanoke Street.