The group photo is from a postcard sent by Phil B. to his friend Clarence in Eldon, Missouri, postmarked
18 Jun 1912 in Campbell Hill, Illinois.  Phil states that this is his baseball team and that James Carr is the pitcher.

UPDATE, 27 Jul 2008:  I was recently contacted by Karl Tegtmeyer who told me he thinks the photo
was taken closer to 1904 and that the boy sitting on the ground infront is William Tegtmeyer.

Update 6 Mar 2021:  Andy provided another copy of the team photo along with the action photos. 

From other items he found it appears these came from the Mohlenbrock family.