Allyson Whitney Foundation Share: Non-Profit Agencies Allyson Whitney Foundation Visit Website Request Info P.O. Box 586 Rock Hill, NY 12775 (845) 707-4681 (fax) Facebook Twitter About Map About The Allyson Whitney Foundation, Inc. is a 501 (c) (3) public charity organization that empowers and fights for the interests of young adults with rare cancers.The Allyson Whitney Foundation, Inc What's Nearby? Distance: 5 10 15 20 25 50 mi.