Hi, History of Mt. St. Hope - Orphanage - hospital
https://www.sjhc.london.on.ca/your-st-josephs/about-us/our-h...There is a contact address -
They may have knowledge of if and where - early records are kept
Perhaps ? Provincial Archive - may hold early records
Your GGrandmother - was born ? - at Mt Hope Orphanage ? Perhaps there is an original Baptism record - How old was she when she was adopted ?