Most likely, the staff member will pull into the system via Wonde if they are down as the Priority 1 contact (manual schools will add them into the portal manually) for them to receive all information related to their child / children. For the staff member to also receive information regarding staff related notices, another child will need to be manually added to the family account:
This can be done by creating a new student to represent that staff member under Students -> Create New, then attaching an existing contact to that student under Profile and Contacts.