Gradwell Mavesere was a Rhodesian who immigrated to the USA with a VISA from Gaborone, Botswana in 1973. She was between the age of 20-21 at the time. I found this info via the WikiLeaks Public Library of US diplomacy.
I never knew Ms. Mavesere, but I hope she is at peace and that her life was full of love and joy. I cannot imagine the journey she went though crossing the globe. May her soul be in a better place.