"At the age of 63, after 44 years in show business, Cecil B. De Mille is still producing. He can't stop and he probably never will. He is first, last and all the time a showman. The show business is in his blood, and whether he is on a set or taking his leisure at home, his heart and mind are in the theater. He loves to have people around him so that he can play a part, for consciously or unconsciously, he is always acting... C.B.'s father was an actor and playwright, and later a partner of David Belasco. His mother was an actress, and later a very successful play agent."
The article goes into more depth outlining De Mille various triumphs in silent film and his work on The Squaw Man.