Complex sentence: Fred Herbert Colvin (1867-1965) was an American machinist, journalist, and editor who edited, wrote, or co-wrote many periodical articles, handbooks, and textbooks related to engineering, machining, and manufacturing.
Split into simpler sentences: Fred Herbert Colvin (1867-1965) was an American machinist, journalist, author, and editor. He wrote, co-wrote, edited, or co-edited many periodical articles, handbooks, and textbooks related to engineering, machining, and manufacturing.