Arthur Harmon Marshall[1] (1885/1886 – February 9, 1951)[2] was the first person to successfully reach the highest point in every U.S. state, of which there were 48 at the time of completion.
Marshall's first state high point was Mount Rainier of Washington, which he climbed in 1919.
Marshall climbed his last state high point, Hoosier Hill of Indiana, in July 1936.
[3][4] As a lifelong bachelor, Marshall was able to find the time to travel to state high points.
To reach the second point, he walked for hours through the woods in a heat wave, and took refuge in a backwoods cabin.