Anyone, anyone? I'd love to know the names of these if anyone knows.

Always chancy to try to ID fungi from a photo, but yours are very good photos. Far from an expert, I will jump in only to suggest a few of the more easily identifiable ones. I have seen all of the ones you picture here at one time or another, and if it were fall and I had just come from one of our mycologist-guided mushroom walks,I might remember better what they are, but my memory is not good except for the edible ones that I gather annually. :-)
1. Try Amanita muscaria var. formosa: http://www.mushroomexpert.com/amanita_muscaria_formosa.html
2.One of the Coprinus species, possibly/probably C.comatus. See http://www.mushroomexpert.com/coprinus.html
3. One of the Russulas: http://www.mushroomexpert.com/russula.html
5. One of the mirasmius or fairy ring ones, I'd guess.

Two excellent, authoritative websites to browse are Tom Volk's at http://tomvolkfungi.net/
and www.mushroomexpert.com

Best bet is to join one of the many mushroom clubs or at the very least, take part in mushroom forays led by mycologists. Since you are in Massachusetts, I have added a link to the NEMA website for you.

Here is a link that might be useful: North Eastern Mushroom Federation