Newsman on Family Tree Circles

Edgar A. McWhinney was my great-grandfather on my mother's side. He was married to Hattie B. Adams in April 28, 1888. My grandfather was Forest B. McWhinney and his brother was Fred Adelbert McWhinney. According to the census there was a sister, Helen McWhinney born 1901. I would like to know the parents (and as far back as you know, along with sources, please) of Edgar A. McWhinney as well as Hattie Adams