User Overrides

We are unit testing 9.1 with an anticipated Go Live date of July 4. We have converted our data, including user overrides. It is not expected that we will convert user overrides again, so I did some clean up in our 9.1 environment. I went into User Overrides and started deleting records for users who are no longer here. Then for grins, I went into Data Browser to look at the remaining records. I still see some straggler information for these deleted users in there. They seem to be type GD. Let's say that in Xe, terminated user Joe User has 40 GD