Thank you for responding;
This is the only email he can get in to;
allisonronaldg@gmail.com , whether he used it for Bitcoin, he doesn't know. We have the password for this one.
There are others which we cannot get into, no matter how hard we tried, they just send us in circles:
ronaldaallison@gmail.comron.allison@live.com - (the oldest one he can remember)
allisonronaldg@gmail.com - this one is working, but don't know if it was used with Bitcoin or not.
Seed phrase, and wallet file, he did have, but doesn't know or have them now.
By Bitcoin account, I mean, anyway for him to get back into wherever, and whatever he needs to do, to retrieve his currency.
Thanks hosseinimr93 and Stalker22