You can set up the directors as a class using the QuickBooks Online (QBO) feature called Class Tracking. This will make it easier for you to track sales for each of them since you can just assign a class to each transaction (invoice or sales receipt).
Here's how to turn on the feature:
In QBO, go to the Gear icon at the top right to get to the Account and Settings.
Select Advanced, then tick Pencil (Edit) icon in the Categories section.
Choose Track classes then pick Warn me when a transaction isn’t assigned a class.
Select the Assign classes dropdown, then pick One to entire transaction or One to each row in transaction.