If you are on campus, you can conduct database searches within the EBSCO search box. However, for the other suggested databases, you will be asked to login through the proxy server. You may find it more convenient to login to the portal whether you are on or off campus. Doing so will gain you access to all library resources.
Academic Search Premier: This database will recognize MORE, Thomas, Sir, Saint, 1478-1535 in a People Search. Note: People search is unique to ASP. It will not function if other databases are added to the search
MasterFILE: This database will recognize MORE, Thomas, 1565-1625 as a Subject Term, but not Academic Search Premier.
Therefore, it is probably best to search each database individually