Background
Diehl was born in on January 15, 1891 in Logansport, Indiana to parents Edwin Randall Diehl and Mary Delilah Wyrick Diehl.
Diehl was born in on January 15, 1891 in Logansport, Indiana to parents Edwin Randall Diehl and Mary Delilah Wyrick Diehl.
Miami University.
The family moved to Ohio shortly after his birth and he attended grammar school in Dayton. He attended Miami University from 1910–1914 and received an Master of Science in botany from Iowa State College in 1915. He was briefly an instructor of botany and plant pathology with Clemson before joining the United States Department of Agriculture where he worked from 1928 until his retirement in 1958.
The standard author transcript Diehl is used to indicate this individual as the author when citing a botanical name.