Sibling, yob-1947, KC, mother-Mary Barbara Jackson

My 3 older brothers and I just found out that we have another sibling-probably a brother. Our mother, Mary Barbara Jackson was 19, possibly 20, when she became pregnant. She was living in Grand Junction, CO and sent to a home for unwed mothers in Kansas City and placed the child for adoption in 1947. Her DOB is 10/10/27. Would very much like to find you! Our mother is in the last stages of Alzheimer's and is completely unaware of anything. It was her older brother that told us. There is a slim chance the child was a girl. Please, if anyone knows who this child might be, or if you MIGHT be this child, let me know.