This is the common name thread for cinematographer John J. Mescall / John Mescall / John Mescal
CLT:
"John J. Mescall" is credited in the following 9 titles (58 profiles)
"John Mescall" is credited in the following 7 titles (10 profiles)
"John Mescal" is credited in the following 3 titles (3 profiles)

John J. Mescall (6 confirmed, 2 invalid):
The Black Cat (confirmed by ninso4)
Bride of Frankenstein (confirmed by ninso4)
Davy Crockett, Indian Scout
The Invisible Man
Youth Runs Wild (confirmed by ninso4)
Magnificent Obsession (confirmed by ninso4)
Show Boat (confirmed by ninso4)
Souls for Sale (confirmed by ninso4)

John Mescall (4 confirmed, 2 unconfirmed, 1 invalid):
Dark Waters
Not of this Earth (confirmed by ninso4)
Kit Carson (confirmed by ninso4)
The Return of Casey Jones (confirmed by ninso4)
Sensations of 1945
Souls for Sale
Davy Crockett, Indian Scout (confirmed by ninso4)

John Mescal (3 unconfirmed):
Andy Hardy’s Double Life
The Easiest Way
New Morals for Old