Who is Calvin D linton?

Answer 1

Calvin Darlington Linton was the academic dean at The George Washington University over some years in the later 1900s. When I knew him in the 1940s he was an associate professor of English there, with a special interest in Milton. He wrote a book, Effective Revenue Writing I and II, which can still be found on second-hand book sites. The book was written for the Internal Revenue Service, hence the title; but its subject was clear, plain writing in general.