Thank you for all your advice. I read them all a few days ago and have been brooding over it. I decided that I would tell those that I saw or spoke to but not the ones that I didn't see in the office before leaving. I figured my boss would fill in when asked.
Yesterday was my last day. Several of the moms called me to say goodbye and two actually came in to see me. One mom told me that every time she told her 2-year old daughter that they were going to the see the doctor she would ask if I was going to be there and say "I love Laura." (How's that for heart wrenching?) It was all I could do to keep from crying. I've invested a lot in all those families and it's hard to say goodbye. (It also doesn't help that I don't do goodbyes well)
I managed to hold it together until I was leaving the office and saying goodbye to my boss. I started misting up and by the time I left the building the tears were rolling.

It's not the job I'm going to miss, it's the parents and the children. In my new job I will be doing things I've never done before and I'm excited.
BTW, Jolie, you do have a good memory!
Laura