How do I write the greeting on this cover letter?
This is not something with which I would normally have trouble, but there are two factors here causing confusion. I'm applying for a job, and at the top of the job description, it gives a contact person and an email address which was obviously set up for this particular job. Then, at the bottom of the same job description, it says, "Applications and letters of nomination should be submitted to:" and it gives the names of two more people, each with a separate email address. So far, so good. I could easily send a letter to Mr. Smith, Ms. Brown, and Dr. Jones, using all three email addresses, even though it is a little odd to send it to three people.
Except that I know one of these three people. Fairly well. I've worked with her on three separate occasions in the past. So I'm wondering: Should I send the application to her alone (and risk alienating the other two, whose role in the search I don't know? Should I send it to Mr. Smith, Ms. Brown, and Dr. Jones, ignoring the fact that I've been calling Ms. Brown by her first name for years? It would look too strange to write Mr. Smith, Dr. Jones, and Mary, so I know that is wrong - what would you do under the circumstances?