searching in Indiana

My search has taken me to many places, some I never want to visit again. There are times that my daughters and I think that perhaps my son just doesn't want to be found. So, here again i go feeling as if I may be dumping salt in an open wound. My son was born on June 27, 1980. In the Good Samaritan Hospital in Cincinnati Ohio. His adoption was handled by Catholic Charities in Ft. Wayne Indiana. All I want is just to know he is fine, and happy. To let him know that he has 4 sisters and a brother, 3 brand new nieces. I may not be on this earth for much longer, I have a brain tumor. I realize that some adoptees don't want to contact their birth families. I don't even need to meet him. Although that would be a dream come true. I named him Michael, his parents call him John. Which, ironically is our family name. We just want him to know that every day I think of him. I celebrate is birthday each year. People want to know how many kids i have, I answer 6. Whether or not we ever meet this child of mine is a member of this family. Perhaps this may reach him, maybe not, but I just have to keep searching.