To move an Employee to History, would mean that the Employee was moved to another folder (Transactions get moved from Current to History, while Employees get moved from one folder to another).  There are two keys to viewing this record:

1.  You'll need to know which folder it was moved to.  (To access, you select Open Company and choose the correct historical company folder.)
2. The data in that folder will need to be at the same version as you currently have installed.  If it is not, upgrading steps will depend on which version it is currently at.

You can reach out to me directly at [email protected] if you want/need to get help with: How to search for other data folder(s); determining what version the data is at (assuming you can't simply open the folder - IF YOU GET A MESSAGE THAT THE DATA NEEDS TO BE UPGRADED, YOU SHOULD VERIFY WHAT VERSION IT IS IN FIRST TO BE SURE IT IS BEING UPGRADED CORRECTLY).