That kind of thing is not unusual. Before a nasty fungus killed all my hosta, I grew some really nice specimens. I have found my photos in catalogs for hosta varieties and so have many others. Mine was copied form the hostalibrary.org. Others have had theirs copied from gardenweb.com, where hobbyists show each other their plants. Food photos are copied and used on blogs and brochures. There's not really much you can do about it. There are so many sites on the internet that you cannot begin to think that you will see your photo somewhere. If you do, what are you going to do? The same thing Marion did. They will take it down and "borrow" another photo from someone else. In six months, Marion's quilt might be back.
It's life in the digital age.
bkay