"A record keeper is someone who specializes in record-keeping, specifically one who maintains records. Such a person is also called an archivist or a historian.

Starfleet includes records officers among the crews of all its major starships."
https://memory-alpha.fandom.com/wiki/Record_keeper

And following memory alpha, they would be considered part of the command division

@lavaeolus i would expect those all to be science division. But I also expect that starfleet doesn't have all that many of them, since having access to space ships and stations wouldn't often be necessary to pursue those studies.