Does it hurt that I have a recommendation letter from a NGO organization coordinator ?

[tmiaj1]

So I was doing a research in a NGO last summer and the research was related with the grad school program that I am about to apply for. 

I am asking the research coordinator to write as my 3rd recommendation letter. My first recommendation letter is from a professor and second is from the research lab project leader whom I have been working on for a year but she's a master student. so i am not sure if it's a good idea if i made the  correction choice to choose the coordinator as my third recommendation letter source.

 

Please help!!

[ToomuchLes]

Good question! I'd also like some info about LOR writers that are not professors, and how this effects your application