As I wrote last month, I wrote a python script that uses the Retrosheet Event and Box Score Event files to build spreadsheets that include all of the umpire info for each game during one or more seasons. Output can be filtered by team and game location.
Retrosheet recently released their “Fall 2023 Update” on December 6, so I re-ran the script against the new data files, and the script still works well.
The script and sample output files are available in GitHub: https://github.com/mhamel12/RetrosheetUmpires
Library of Congress, Prints & Photographs Division, LC-B2- 3260-2 [P&P]
https://www.loc.gov/item/2014697771/