Item 90090 - Dennett property, S. Side Island Avenue,, Peaks Island, Portland, 1924 Item 90090 - Dennett property, S. Side Island Avenue,, Peaks Island, Portland, 1924 Contributed by City of Portland - Planning & Development Item 90090 Zoom 4800px x 3455px - 16.0"w x 11.5"h @ 300dpi | Need a larger size? *Credit line must read: Collections of City of Portland - Planning & Development Image Info Summer Dwelling at S. Side Island Avenue, in Peaks Island, Portland, was owned by Lizzie I. Dennett in 1924. Show Details