Emma Rowena Gatewood, better known as Grandma Gatewood (October 25, 1887–June 4, 1973), was an extreme hiker and ultra-light hiking pioneer who was the first woman to hike the 2,168-mile (3,489 km) Appalachian Trail from Mount Oglethorpe in Georgia to Mount Katahdin in Maine solo, and in one season.
Ohio Revised Code - GENERAL PROVISIONS - Chapter 5: STATE INSIGNIA; SEALS; HOLIDAYS: 5.2284 Emma "Grandma" Gatewood Day.
The twenty-seventh day of April is designated as "Emma ’Grandma’ Gatewood Day," in honor of the legendary hiker who was a founder of the buckeye trail, which was declared the official hiking trail of the state on that day in 1967. (Added by 129th General AssemblyFile No.159, HB 492, §1, eff. 3/22/2013)
Source: ohio.gov