Michael is adopted, but I think Maureen was his and Jane Wyman's biological daughter. I always thought Maureen resembled Jane a lot. I may be wrong, though.
Is Ron Reagan still married to Doria?
Is Michael Reagan still married to Colleen?
Was Maureen still married to Dennis Revell at the time of her death?
You're right. She even sounded like Jane Wyman who was born Sarah Jane Fulks or something close to that. Jane attended her daughter's funeral when Maureen died of cancer in 1991. Jane must really be ancient!