Middlefield Community Day Mixes Fun, Food, Arts, Crafts Bob Jorgensen of Middlefield Center, foreground, top photo, discusses his antique tractor collection, on display until 4 p.m. today at the 45th annual Middlefield Community Day at the Middlefield Historical Society headquarters in the old schoolhouse. Listening are John Reynolds, Middlefield Center, left, and Mike Jorgensen. Inset photo, Irene Fassett, East Springfield, tickles the ivories as keyboardist for the Small Town Big Band; to her left are clarinetists Arnie Jungkind, Springfield Center,…