The glamor photographers from the 40’s ( source :

Thanks to B and H, I got this list from the video ‘The ’40s Glamour portrait( link ) at 10:17

1. George Hurrell, MGM
2. Clarence Sinclair Bull, MGM
3. Ruth Harriet Louise, the rare female, MGM
4. Laslo Willinger, MGM
5. Bill Walling, Paramount/Universal
6. Edwin Bower Hesser, Warner Brothers
7. Ernest A. Bachrach, RKO