Item 91179 - Gruelling property, N. Side Island Avenue, Long Island, Portland, 1924 Item 91179 - Gruelling property, N. Side Island Avenue, Long Island, Portland, 1924 Contributed by City of Portland - Planning & Development Item 91179 Zoom 4776px x 3523px - 15.9"w x 11.7"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 William P. Gruelling in 1924. Show Details