Gillian Gill's biography of Eddy is better than most Eddy biographies because it is neither diatribe nor hagiography. However, the scholarship of the book still leaves something to be desired.
Gill's "research note" explains that she never entered the church archives directly. Instead, she reviewed all previously published bibliographies and listed the sources mentioned in those bibliographies that she also wanted to see.
A church-paid research assistant checked the archives on Gill's behalf, and located some of these sources. (Some items "could not be found," the assistant told her.) Next, a lengthy church approval procedure whittled the list of sources down further before Gill was permitted to see them.
This "method" of gathering sources virtually guaranteed that Gill would not uncover anything new or upsetting to the CS church.
True, Gill is not to blame for the restrictions placed on her by the church. At least Gill looked at some of the primary evidence--a strategy that Gill (best known as a translator) says she didn't intend to follow when she began the project. But any bibliography is only as good as the research which underlies it, and in this case, the research was necessarily partial.
Additionally, Gill did not address the work of other feminism and religion scholars, such as Susan Hill Lindley or Cynthia Grant Tucker, who have also researched Eddy and Christian Science. No explanation is given for this omission.
Finally, Gill is prone to making judgments which do not seem supported by the evidence she cites. For example, Gill accepts Eddy's claim that Eddy espoused abolitionist views prior to the Civil War seemingly because Eddy said so later in life. She also accepts Eddy's claim that, at the age of 12, Eddy impressed church elders with her advanced understanding of God, again without corroborative evidence, and without commenting on the obvious biblical parallel.
Given Gill's research note, one wonders if Gill's judgment in these matters might be influenced by her reliance on the CS church for sources. Gill's church-paid research assistant was also her fact-checker.
While Gill's biography is certainly better than any Eddy biography previously published, it cannot by any means be called definitive.
The definitive biography will have to wait until the CS church allows scholars true access to the historical archives.