Need to delete one and keep the other

All you need is to click forget my password, enter your details and search your user ID, verify is it you and then reset your password to recover it.

Elizabeth, Check the attached links,
"I hope this helped you out, if so let me know by pressing the helpful button. Check out some of my other posts if you need more tips and info."
https://www.facebook.com/help/ipad-app/223786757631885

How to Delete Your Facebook Account from iPhone or iPad

How to permanently delete your Facebook account

You can't delete it, you can cancel your account. Welcome to Facebook Log In Sign Up or Learn More

Hi
Presumably you have two Facebook accounts and can log into them separately, so I suggest you go to the log on page:
Welcome to Facebook Log In Sign Up or Learn More
for each one of them and click the "Forgotten your password?" link underneath the password entry box. Follow the instructions through and reset your password, making careful notes throughout of the username and new passwords for each account. Log onto each account separately and note which one you want to keep. Then go through the other one to see what you might want to transfer and not it down. Then go here:
Facebook Help Center Facebook
where there is lots of help that should enable you to transfer the items you noted down.
Finally delete the page / account you don't want.
Hope this is helpful, if so would you please register that with Fixya
Cheers

how to deactivate facebook account 2015

You need to sign in to Facebook, and right click at the top of the menu bar, where it says privacy or account info. And you need to tell them that you want to delete those 2 accounts. But you have to log in twice to do both accounts separately.

that is precisely correct even though there is a 14 day waiting period, I tested this twice and as soon as I logged in the profile was there waiting for me.

If your request to reset is returning that they can not find your emails as registered accounts then those email accounts are not the correct ones tied to your account. Deleting your history does not delete the account from the Facebook servers so the best you can do is continue trying to figure out what email you registered to Facebook with. If the email you used is no longer active you will be unable to reset the account and it may be lost to you.
If you figure out the correct email and can not reset the password due to the email being inactive then you may have to create an account with a new working email. If you have to do this you may then contact Facebook support and attempt to explain the circumstances and see if they can change your original account to be your working email and a reset password.
Best of luck.

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