By the way... The Illinois Railway Museum has three coal burning locomotives with Vanderbuit tenders: GTW 4-8-4 6325, UP 2-8-0 428 and Graysonia Nashville & Ashdown 2-6-0 26 and one oil burner with a Vanderbuilt, SP 2-10-2 975.
Seems coal Vanderbuilts win out...
Rusty