Hi Amanda.
In most cases, I've been able to change "ID" to ":name". I tested this in a personal "testing" view I have created and, in this case, I was able to display the name by changing "lastUpdatedByID" to "lastUpdatedBy:name".
valuefield=lastUpdatedBy:name
querysort=lastUpdatedBy:name
valueformat=HTML
displayname=Last Updated By
linkedname=direct
namekey=lastUpdatedBy:name
I've found a couple of instances where I was not successful in this change, but I think there may have been other conditions that were causing it to fail (for instance, trying to capture a requester name when the original request had been deleted).
Good luck,
Harold