OK, you can’t get to the Rochester Grange Fair on August 21, but you have a second chance to experience a classic piece of Americana.  The South Middleborough Grange Annual Agricultural Fair will be held on Saturday, August 28, at the SMG Hall, 570 Wareham Street in South Middleborough.  The Fair opens to the public at 1:30 pm, and there will be prize exhibits, a baked goods table, grocery basket, traveling bazaar, and cold drinks for sale all afternoon. Admission to the Fair is free, and there is ample parking.  At 6 pm, a chicken pie dinner will be served, with juice, chicken pie, mashed potatoes, green beans, another fresh vegetable, locally grown tomatoes, rolls and butter, gravy, coffee, punch, and – you’ll love this flash from the past – jello with whipped cream.  Adults may feast for a modest charge of $8, and children will be charged $4.  The Fair auction begins at 7:15, and all are welcome.