Media Capital references

I was surprised that Aurora Wallace's Media Capital: Architecture & Communications in NYC didn't mention the work of Thorin Tritter. He gave an excellent presentation at the 1999 Assn for Education in Journalism & Mass Comm annual conference when he was finishing up his Columbia U. dissertation, "Paper Profits in Public Service: Money Making in the N.Y. Newspaper Industry, 1830-1930. " A simple search revealed that Tritter worked as a Big Onion Walking Tours guide. Not sure where he is now but sounds like invaluable resource for mapping project.Norma Green