Apologies for wading in this post at a later date. I came across the post as the result of a random google search of "Edwin Ames Engraver". I am actually research my partners family for him.
Beatrice Ames was his great grandmother, her mother was Mary Ann Ames though no father is given. Mary Ann Ames' birth certificate lists her father as *Edwin Ames* and her mother as Elizabeth Ames (formerly Holland). This all ties up with the 1881 census where he seems to have a family with Elizabeth. I also found his marriage to Kezia and them in the 1861 census previous to this. This photo is very exiting

Curiously although Edwin is in the 1891 census with his son Albert (Mary Ann's brother) in the 1891 census record I have found of Elizabeth, Mary Ann and Beatrice; Elizabeth is now listed as Holland again and records herself as widowed. I do wonder if this had something to do with Mary Ann raising an illegitimate child (Beatrice) that she gave birth to in the work house in 1888?