How do I find who has a specific username

[Kim Clinton]

I may have two accounts.  How do I check if kimclinton is an account I set up a long time ago?  I created a new one last week and it auto assigned kimclinton1.  When I tried to change it in settings it said username already taken.  

[A.]

I agree with Marc. Another option would be to visit https://trello.com/kimclinton and see if you can recognize your old account, but in this case it wouldn't be very helpful since there is no profile picture associated to this profile.

[marc -Collabello--Phase Locked-]

One possibility is to use the password reminder feature of Trello.  Go to https://trello.com/forgot and fill in the email you believe is couple to your old account.

This obviously only works if you remember your old email address and still have access to it.