There is a James C. Higgins who pitched in the minor leagues in the late 30's and early 40'. The southpaw is listed as being 6'7 and 220 pounds. He played out east mainly in the Athletics' farm system, but spent the 1940 season with Appleton in the Wisconsin League. A newspaper article from August 31, 1940, says he is 6'8. This puts him in proximity of being able to suit up one time for Hammond. I am very sure it is him.
I found a Jim Higgins who played at Olney HS in 1935-36 and was a
center. The Decatur Herald confirmed that the Olney center decided
against attending Northwestern to play basketball, and instead signed
with the St. Louis Browns of the American League