In search of my sister

I am in search of my sister we have many medical problems in our family that she needs to know about its not only for her sake to know but if she has any children or maybe already does.she was born at bayfront medical center in saint petersburg floirda on 6/15/1985.we would love to meet her of course on her terms but most of all we need to let her know one of my children (its genetic) has neutropena where she has to have shots 2 times a week she is very ill and one of my other ones may also have it please if anyone can help we have already went to catholic charties to see what info they still had but no luck please help