So maybe that spread sheet, under the: DOJ Alumni Statement on the Events Surrounding the Sentencing of Roger Stone Feb 16 Protect Democracy posted (see disclaimer underneath), wasn't verified at all! Here it is;
"Signatories have been vetted to the best of our ability. We will continue to update the signatory list until Wednesday, February 26th."
The list is currently up to 2598
https://medium.com/@dojalumni/doj-alumni-statement-on-the-events-surrounding-the-sentencing-of-roger-stone-c2cb75ae4937