I’ve been working, according to my notes, since 2011 on this spreadsheet. It started in Excel, which is a superior spreadsheet. But between computer updates and other things, I figured Google Sheets would give more flexibility regardless of how ancient my computer was.
The beginnings are on the TruxtonCircle.org site for each individual square.
Here is the link for the Census for Truxton Circle 1880-1950. 1950 isn’t on it yet. I am still working on that data. It’s linked to the spreadsheet I am actively working on, so hopefully I won’t leave a filter on.