The Jackson Base Ball Club

First Grand

Annual Basket Picnic

Of The Jackson Base Ball Club,

will be given at Gritasley Station, Iron Mountain Railroad, on Thursday, June 15, 1865.
Tickets - One Dollar.
Cars will leave Plum Street Depot at 8 A.M.

-Missouri Republican, June 12, 1865


I can't find any record in my notes or on the blog of a Jackson Base Ball Club so I'm calling this a new discovery.  They're probably an example of the explosion in popularity of baseball that we see immediately after the Civil War ends.