I am Frank Terence Cooke in the field of theology . There is anther researcher with exactly the same name in one of the medical field. We are constantly mixed up with one another How can we distinguish between the two of us.
There was a fine arts professor at the University of Calgary who taught lithography and had himself listed in the phone book as John Litho Wills. But I think in your case you could just list your degrees after your name, e.g:
Frank T. Cooke, MD vs Frank T. Cooke, DDiv
If appropriate you might also use Rev. or Rev. Dr. as your title.
The other Frank Cooke was a colleague of mine who left research some time ago. I believe he makes guitar amplifiers for a living now! In any case, I'm pretty sure he's not on Researchgate, so you're getting his papers but he's not getting yours.
If you have some of his publications in your article list, these can be removed manually. Go to your full article list where for each paper there are two hidden options next to the "add full text" button: edit and remove. Then I suggest you use the "confirm your authorship" option (menu on the left of your full article list) to tell Researchgate which of the Franke T Cooke papers it thinks *might be* yours are actually yours. Hopefully that should train its prediction algorithms a bit better...
It is not unique to your case you just have to clearly define your profile to differentiate it from the other individual as Hendrika Vande Kemp advised