What is the order of precedence for prenomial titles such as Dr., Rev., Col., etc?

Answer 1

Good question. You get a star. I am looking up the answer but I can not find what you are looking for. Here is a link for Emily Post you can post the question there.

http://www.emilypost.com/etiquette/everyday/forms_of_address.htm

EDIT:
I emailed the above site and just received back from them that they can possibly answer the question in 2 or 3 weeks. It seems they are backed up at the moment.

Answer 2

I know that Rev. comes before Dr., I'm not sure why, I will keep researching, I'm now curious myself.