Item 87729 - Power property, Island Avenue, Long Island, Portland, 1924 Item 87729 - Power property, Island Avenue, Long Island, Portland, 1924 Contributed by City of Portland - Planning & Development Item 87729 Zoom 4758px x 3848px - 15.9"w x 12.8"h @ 300dpi | Need a larger size? *Credit line must read: Collections of City of Portland - Planning & Development Image Info Summer Dwelling at Island Avenue in Long Island, Portland, was owned by Frances W. Power in 1924. Also known as "Trowbridge". Show Details