Hello Mike FLadeland,
Tap or click here for a great writeup on how to mass delete Google Mail between two specified dates.
Log in to your inbox.
Type “before:YYYY/M/D” (replace YYYY/M/D with the desired date, such as 2022/2/22) in the search bar and hit Enter .
Click the top checkbox.
Click the ‘Select all messages that match this search’ option.
Delete