Item 88245 - Dunlap property, S. Side Rockledge Avenue, Little Diamond Island, Portland, 1924 Item 88245 - Dunlap property, S. Side Rockledge Avenue, Little Diamond Island, Portland, 1924 Contributed by City of Portland - Planning & Development Item 88245 Zoom 4800px x 3479px - 16.0"w x 11.6"h @ 300dpi | Need a larger size? *Credit line must read: Collections of City of Portland - Planning & Development Image Info Summer Dwelling at S. Side Rockledge Avenue in Little Diamond Island, Portland, was owned by Stuart A. Dunlap in 1924. Show Details