Item 90958 - Keith property, N. Side Island Avenue, Long Island, Portland, 1924 Item 90958 - Keith property, N. Side Island Avenue, Long Island, Portland, 1924 Contributed by City of Portland - Planning & Development Item 90958 Zoom 4812px x 3372px - 16.0"w x 11.2"h @ 300dpi | Need a larger size? *Credit line must read: Collections of City of Portland - Planning & Development Image Info Summer Dwelling at N. Side Island Avenue in Long Island, Portland, was owned by Emma L. Keith in 1924. Also known as "Nevawannaquit". Show Details