Gearhart was born the son of John Wesley Gearhart and Mary Elizabeth Johnson Gearhart in Fresno, California on May 31, 1890. After attending public school in Fresno, he went on to Boone's University School in Berkeley, California and graduated from there in 1910.
Gearhart was born the son of John Wesley Gearhart and Mary Elizabeth Johnson Gearhart in Fresno, California on May 31, 1890. He went through a series of educational institutions, starting with public schools in Fresno before attending Boone's University School in Berkeley, where he graduated in 1910.