The death certificate for John says he was 45, single, and died of tuberculosis. It said he had lived in Dallas 20 years. His parents were not named on his death certificate.
I think the death certificate was wrong about his age. Based on the 1900 Dallas County census and the death certificates of the two women identified as his sisters, I think John was born August 1873 and that he was the son of Robert and Annie McCutcheon.