This photo is identified as being of the 1915 Rose Festival Parade along N. (now NW) 6th Avenue. Ads in The Oregonian show The Nickelodeon theater on SW 6th between Alder and Washington, across from The Oregonian Building. Had The Nickelodeon moved north of Burnside by 1915? Is this photo totally mislabeled? A mystery to be solved!
Found: SE Grand at Morrison.