Hairtrigger:
Yes. There are writings by the such ones. Check out The Apostolic Fathers in English 3rd Edition by Michael Holmes.
Please keep in mind that Martin Luther's Reformation Movement is why some many outside the Catholic Church have no idea where much of Christian doctrine comes from. Luther touted Sola Scriptura (Scripture Only) or "if it is not in the Bible it is not true." Then Luther started removing books from the Bible because they opposed his beliefs (i.e. saved by grace alone which gave us "once saved, always saved"). Luther tried to have the Book of James removed from the Bible because one verse counters the saved by grace alone belief.