Item 88642 - Trefethen property, E. Side Island Avenue, Peaks Island, Portland, 1924 Item 88642 - Trefethen property, E. Side Island Avenue, Peaks Island, Portland, 1924 Contributed by City of Portland - Planning & Development Item 88642 Zoom 4728px x 3407px - 15.8"w x 11.4"h @ 300dpi | Need a larger size? *Credit line must read: Collections of City of Portland - Planning & Development Image Info Dwelling at E. Side Island Avenue in Peaks Island, Portland, was owned by Wiliiam H. Trefethen in 1924. Albert E. Trefethen also listed as owner Show Details