Jackson: Orion Clemens Album Upper Cumberland Image 19/50 Mar 01, 2008 13:30 Original Metadata Camera Model:Canon PowerShot S5 IS Original Time Taken:Mar 01, 2008 13:30 Shutter Speed:1/500 sec Aperture:f/4 ISO Sensitivity:100 Exposure Compensation:0 EV Metering Mode:Pattern Flash Fired:No Flash Focal Length:6 mm Seen in Gainesboro's Town Square. Orion Clemens was the Older brother of Samuel Clemens, better known as Mark Twain. About a block to the west is Mark Twain St.