Full scans of Life , People , New York , and SPIN from 1978–1995. Link #2: Google Books – Best for Snippet Previews Search string: "teen guardian angel" 1978..2003
https://books.google.com/books?lr=&as_brr=0&q=%22teen+guardian+angel%22+1978..2003&btnG=Search+Books silwa teenager1978 to 2003magazine collection link
https://archive.org/search?query=guardian+angels+teen+magazine+sliwa&and[]=mediatype%3A%22texts%22 Full scans of Life , People , New
Some issues are full view (pre-1928 irrelevant), but post-1978 often show 2-page previews — enough for citation/context. Link #3: Getty Images – Magazine Covers Collection Getty has archived cover scans of magazines with Silwa teenagers (not full interiors, but perfect for collection covers). Full scans of Life