Question: Which film has the director who is older than the other, How To Make A Monster (1958 Film) or The Insurmountable? 
Sentence (from "How to Make a Monster (1958 film)"): How to Make a Monster is a 1958 American horror film drama, produced and written by Herman Cohen, directed by Herbert L. Strock, and starring Gary Conway, Robert H. Harris, Paul Brinegar, Morris Ankrum, Robert Shayne, and John Ashley.
Relevant evidence: Yes