Complex sentence: Olds had a reputation for irascibility, part of which may have been due to arthritis, noted William H. Tunner, a subordinate at Air Corps Ferrying Command in 1941, and was often in pain but not crippled by the affliction.
Split into simpler sentences: Olds had a reputation for irascibility, part of which may have been due to arthritis, noted William H. Tunner, a subordinate at Air Corps Ferrying Command in 1941. He was often in pain but not crippled by the affliction.