I would love to learn what evolving surnames you have in your ancestry. It might help on some brick walls.
In my ancestry I have a few, but it is interesting that people still insist someone's surname is only spelled one way.
When my Bradney family were living in Pontesbury, Shropshire, England, they went by "Bradney" (also spelled Bradeney). In the 1840's they went to Abersychan, Monmouthshire; Shifnal and Wolverhampton, Shropshire; then latter to Norton Canes, Staffordshire and the USA. After they moved their Bradney name evolved to "Bradley." (Then their name was spelled: Bradney, Bradiney, Breadney, Bradley, Bradeley, Braidley, Braidley, Bradeley, Bradley, Bradely,...) I think some other "Bradney" families in the Wolverhampton area also changed to "Bradley."
My ancestor John Gleaves (abt. 1795-1841) usually went by "Gleaves" or "Glaves," but his children usually went by "Greaves" or "Graves." (So far I have found John Gleaves's name spelled 9 times as Gleaves, 7 times as Glaves, 3 times as Glives, 1 time as Gleves, 1 time as Clews, and 3 times as Greaves, during his lifetime.) They lived in Birmingham, Warwickshire.
I also have one or two ancestors, who lived in Somersetshire, with an alias, for example "Booby alias Hearn." My German ancestor Michael Schmidt, who immigrated with his family to the USA in the 1830s, was often recorded as "Smith" in US records and all his children adopted the "Smith" surname.