What can we take away from this exercise? Here are the main points:

* The estimate widely used in the legacy media is not from an authoritative source, and it isn’t even consistent with itself: “full back to 3rd Street” is around 250,000 by Park Sevice methods, not a quarter of that.

* Many estimates, using different assumptions and different methods, arrived at numbers well into the hundreds of thousands.

* This is clearly consistent with the panoramic photo that we can source reliably.

* With everything above, and with several more estimates, I don’t think there is a plausible argument for any total attendance figure much less that 500,000 to 600,000. That is, nearly ten times the reported attendance.