Children's wigs

Have a 4 1/2 year-old niece with Non-Hodgkin's Lymphoma. She's had 3 haircuts shorter and shorter to hide the baldness but eventually she will go completely bald and will be that way for over 2 years until she finishes chemo and recovers from it. I've heard of an organization that makes wigs for children and it's something like "Locks of Love". People with long hair get it cut and this organization makes childrens' wigs and I believe gives them to the child--Could someone give me more info? Tried website but must not have name exactly right.

Thanks,
Jeanette