I've got a multi user site which has about 100 authors on it, 20 or so current, the rest no longer writing for the site.
I want to work out an easy way to look at the current authors and see the last time they updated the site. Just the date, no links etc. I've got a file of current authors, eg
John Smith Bill Brown Kate Jones etc
and for each one I want to get a date of last update, eg
10 Jan 2018 03 Jan 2018 12 Dec 2017 etc
Is there an easy way to do this?