Just a tip to help hose searching for other rarely circulated photographs of ground zero, I've been reading through another incredible book,
Watching the World Change: The Stories Behind the Images of 9/11 by David Friend, which documents the accounts of many witness to the attack and its aftermath, and it notes that the following photographers (in addition to Gregg Brown) were known to have access to ground zero in the weeks and months following the collapse:
Joel Meyerowtitz (a world renowned photographer who used various connections in the Park's Department, NYPD and Mayor's office to gain access, as I noted in my post on the last page)
Andrea Booher (who was employed or retained by FEMA)
Sergeant Patrick Jennings (who worked for the National Guard according to
Watching the World Change)
Stephen Delory (I can't find any additional information on him, his photos, or for whom he took such photos)
Gary Suson (
who worked for the FDNY's main union and who apparently published a book of images of Ground Zero)
Sacha Waldman (who is now an esteemed celebrity/commercial photographer but who also took several panorama shots of ground zero according to
Watching the World Change)
Overall, however, I have to say it's a bit disappointing that there hasn't been a concerted effort to collect and archive all of the photographs, at least so far as I can find.