What’s In A Name?

In the projects that I am current working for, I got three people whose names I usually interchange. The first is Gordon Scott, a mechanical engineer doing technical reviews on the project. The second is Blake Gordon, an equipment supplier whom I am always communicating with. The third is Scoot Blake, a senior designer doing some my design in one of the projects.

I always get confused how to call the guy I am talking to. I might be calling the wrong one. Even in emails, I always tend to reply to click the reply button in order not to be typing the wrong email address. I might be sending an email to the person to which it is not inteded for.

What's in a name? What a coincidence, is it luck or unlucky on my part? I always get confused.