This page is linked from many photos distributed from the Minnesota Science Fiction Society Fan Photo Archive.
Our policy and purpose is to support the science fiction field. This means we are very likely to grant permission for non-profit and academic uses (for rights we hold). We do not own the rights to everything we we have on our site, check the details in photo metadata for the photos you are interested in.
We’re not opposed to flat-out commercial uses either, but we have expenses to meet. Ask!