I grew up in Potter County, Pa.---Gold/Ulysses Area.
The Hosley family lived and probably still lives in the Gold, PA. area of Potter County. I recall playing with a Joanne Hosley in the early 1950's. I believe she also had older siblings, Larry and Patty.
Last time I looked there was an extensive history on this family posted on the site for Potter County, Pennsylvania.
I do know people in the area who might be able to give you information on the family if you are interested. I haven't lived there since 1966.