My adoptive parents were also Catholic. They often took me by the Cradle to show me where I came from. Bing Crosby also adopted at least one of his children from the Cradle.
I think you'll like the ABC program. You can even look it up on the web and probably watch some episodes there.
I understand your frustration in looking for information since I've been looking about 30 yrs. Catholic Charities was no help to me. I think my birth mother was Catholic too.