<p>Hi! I'm applying to PhD programs, and I need 3 letters of recommendation. I'm using my thesis/concentration advisor, for whom I did research one summer and took a few classes with, a professor who taught 3 of my classes senior year and knows/likes me. For the 3rd, I could either have another professor who I had for 2 classes, but they were big and he doesn't really know me except by sight and from my papers, or a grad student who was my trench supervisor (I'm applying to archaeology programs) and then taught a field archaeology class I took. She has since gotten her PhD, but went to med school, so it's not like she's known in the field. </p>
<p>Is it ok to get a letter of recommendation from someone who was not a full professor at the time when she knew me? Or would it be better to get a letter from a more prestigious person, but it wouldn't be that personal?</p>