Non White Parents Adopting White Children

Hello all, I am a University student who is the preparation stages of writing a psychology Senior Thesis. My topic includes non-White couples who have adopted White children and White children of non-White parents. I am Black and have the desire to adopt many children of different races, including White. I'm not sure what the current policy is, which I why I chose this topic. I want to study the effects (mentally, physically, spiritually etc) of a White child being brought up in a family of parents of a different race. I have heard many accounts of White parents adopting non White children, but not the other way around. What I am asking is if there are any couples out there who are not White who have adopted White children? Also, are there any non white couples who have attempted or are attempting to adopted a White child? Also, are there any White individuals who grew up with non White parents? I'd love to hear your story and include you in my research. If you can contact me, that would be great. Thanks so much for your time Ruth