I really appreciate your great work and use your renditions for all my ballpark assignments! Just one question. For some ballparks you name them I, II ,III etc. For example Wrigley I, III, IV, V or Shea I, II, III. Is there any way I can assign an era or dates to these different Ballpark versions (eg. Wrigley I would be 1914-1937, or Wrigley III would be 1938-1968 or whatever)?
Thanks Again, Regards