Beatrice Ethel Hackman was born at Harrow, Middlesex in 1889
Her father was Charles Henry Hackman (1855-1940) a baker.
Her mother was Elizabeth Gates (1854-1933).
Charles was descended from the Hackman family of Godalming, but his ancestors moved away from there in the middle of the eighteen century. This Hackman family tree can be traced back to 1606.
I hope this information is still of interest to you.