Paul, according to the book Limiteds, Locals and Expresses in Indiana, 1838-1971 by Craig Sanders (Indiana University Press), power for the The South Wind consisted of K4s Pacifics followed by Baldwin passenger sharks (as done in brass 3-rail by Weaver Models) and then followed by E7 and E8 locomotives. There is no mention of T1's.
I sent you an e-mail with scans of the appropriate pages. They are not posted here due to potential copyright issues.