I wish I could answer your question with a yes or no, Myrna, but all I can say now is maybe.I would have said no because I have found no primary evidence that they had a child.Her death notice does not indicate one.However, I found this article in the Portsmouth Times from May 11, 1889:
Cora S. Beren, died at her home in Covington yesterday, May 10th.She leaves a husband and two children. Deceased was the only daughter of T. J. McCollister.
I have found no other information on Cora Beren and I do no know if the mentioned T. J. McCollister is the one who married "Maggie Shellieg". Of course Cora's mother could have been someone else.Even in my case I have been unable to find any record to prove that my grandfather is a son of the above mentioned T.J. but there is high degree of certainty. I hope to have proof of this within the next two months.I was able to find a male relative from a brother of T.J.He is doing a DNA test which should show if we are related.My point here is that it is possible that T.J. Mc... had other children. Is Cora Beren Margret Shelleg's daughter? I have not yet found an answer to that.
Please keep in touch if you find out anything else.