Very elusive
Mary Ann's death cert. cites her father as Henry, but as hard as I've tried, I cannot confirm this from any other source. Richard Dewing and Eliz. Goss Herring always seemed a better fit, but again there is not enough evidence to convince me this is correct.
Mary Ann has been described as a pleasing, intelligent woman and was obviously well educated as she could read and write, play piano and schooled all her children.
It was convention that in those time , the children were named after parents and grandparents. Their children's names were:
Edward (decd)
Helen Marion b 1838/40
Frederick Augustus b 1840
William Henry b 1842
Charles Alfred b 1844
Henry Alexander b 1845
Not sure what you can conclude from this : supports the name Henry, but also I believe the children of Richard and Elizabeth had names of Frederick and Augustus.
I haven't progressed anything from here, so would always welcome more input.
Paul