I can add a to the profile of John Walter Welsh. This is who I can add:
These are the sources I am using:
Should I contact one of the pre-1700 projects or know about any style guidelines before proceeding? Thank you!
I wonder if the problem could be the appearance of the orange banner saying:
Pre-1700 Requirement: If you're not already coordinating with a project and familiar with applicable style rules click here: Ask for Advice
If so: this appears any time you go to the edit screen of a pre-1700 profile - the computer doesn't "understand" that you already have the permission (=tte pre-1700 badge).