@Amanda DeLancey if you have premium, you should be able to do an export of your workspace table, and then use excel to filter by board name and pivot table for unique names under cards assigned. (Although I'm not sure this would list people who are _not_ assigned cards.)
yes! it looks like there is a members object on there. So you could probably grab this, go to the "members" object, copy and paste that into something here: https://www.convertcsv.com/json-to-csv.htm
And it will convert those into a excel table with a list of members:
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