A timely tech note.
Google offers two mechanisms for students and staff to transfer documents and email from one account to another.
The first allows a student or staff to copy all their emails and Drive documents from a District account to a personal Gmail account.
The second allows a student or staff to download a copy of all their emails and Drive documents from a District account to a file.
The original documents stay in the district account, but a copy is created. The first process in particular is a great way for students or staff that are leaving to retain access to their files.
This is a user friendly description of the process: https://support.google.com/accounts/answer/6386856