Thank you for the information.  I like the code and am going to test, however when I run the EXEC sp_change_users_login 'Report' on a database with several users, connected to a login or not, it doesn't return any records.  I ran the code on master and several different databases (SQL 2014 and SQL 2016) all with Users.  This is so simple I can't imagine what I am missing but obviously I am .