Last year on her death bed, my mother told me and my sister that she had a child before us and she went to some place where pregnant girls went for about the time she was showing and had the baby there and gave him up for adoption. Big ole secret. I say let sleeping dogs lie.
How sad for your mother, to keep the secret for all those years. I understand about sleeping dogs, but hope your half-brother hasn’t wondered all of his life, as to what were the circumstances related to his birth and biological family.