On the last Saturday of August, September, and October, from 1 to 3 p.m., The Chisholm will present a series of jam sessions in the parlor room of Horizon Hill, the home of Territorial Governor A.  J. Seay. Each session will start with a performance by Wayne Cantwell, “the Flyin’ Fiddler,” followed by an old-time jam session. Musicians of all levels are encouraged to participate in this excellent learning opportunity to sit and play alongside seasoned performers! New players are…