This is a very long book - 520 pages of text plus 180 pages of footnotes plus an unusable index (names with long lists of page numbers). It gives all the information about Mary Baker Eddy that would satisfy any reader, but it is written in an academic style - rather dry. Facts and presumptions aren't enough.
Gill spent about 40% or more of the book refuting statements made by other biographers, leaving me to feel that I should have read all of those books first so I would understand her references. Mentioning other biographies so often is unnecessary and jumbles up the author's message. Why not just state your own research?
Gill used different names for Mary Baker Eddy depending on which husband she was married to. This was ultra-confusing because there are many "Marys" in the book as well as many Glovers and Pattersons. and referring to Mary Glover or Mary Patterson or Mary Eddy caused a great deal of concentrated effort to keep track of exactly which person Gill was meaning. Why not just use MBE? And, oddly, the author chose to always call her Mrs. (Mrs. Glover, Mrs. Patterson, Mrs. Eddy). So how about Mrs. MBE?
While this was an enormous project and clearly Gill did a lot of research, the book had a lot of facts and theories, but it lacked depth.
MBE founded a religious movement, but there is no discussion of comparative religion in the book. Surely MBE's upbringing as a Calvinist with a father who was a strict Calvinist and highly controlling would have had a great influence on MBE psychologically. For MBE to break from that stricture and form a new religion was enormous psychologically, but Gill doesn't pursue this path. No explanation of Calvinism or how many people were of that denomination in Mary's life. Or what the religious expectations of her community were. No discussion of how New England - land of the Puritans and Calvinists - was home to mesmerists, fortune tellers and spiritualists holding seances - and how they related to the general population or Calvinists especially. How was MBE able to overcome her upbringing psychologically, break out as it were, and attend seances?
As for womanhood and MBE's health, Gill makes reference to "hysteria," but doesn't explain that term and how doctors treated it (with laudanum, a concoction of opium and alcohol). Gill also makes a weak conclusion about MBE being anorexic instead of hysteric because she ate very little during a particular period of childhood - however, at that time MBE was under a doctor's prescribed diet. Lacking was an exploration how the provincial strictures on MBE had an effect on her livelihood and day to day living as a child, a widow, and later on, an abandoned wife. Remind us that there was no electricity - by stating how lonely it would have been after dark, stuck in one room in a boarding house after her second husband left. And, no discussion of the effects on Mr. Patterson of MBE being bedridden during their marriage.
The author discusses Phineas Quimby, a man that healed MBE to the extent that she was no longer bedridden (after several years). MBE sought out Quimby's healing until his death. Some attribute, at very least, the genesis of Christian Science to Quimby because MBE spent afternoons alone with him presumably asking questions about his healing methods and reading his manuscripts. In the book, Gill states that Quimby used "error" as a synonym for illness (before MBE) and also the term "animal magnetism" (before MBE). Her critics charge that MBE plagiarized Quimby's writings. Gill says no one can read Quimby's writings because they are so badly written. I read them and found them only a little more convoluted than MBE's writings. Gill refutes the plagiarism and I agree, but Gill does not delve into the concepts of healing which is really important to MBE's writings and the religion that she created.
A discussion of the psychology of poverty was needed. Not just that MBE was destitute for years, but what happens to a person under that kind of stress. Furthermore, what is the psychology of rejection? MBE was rejected by most of her siblings, her father, and others at some time or other. What does that do to a personality?
Gill also inserted herself into the biography - "I think this" and "I believe that" - again, reminiscent of an educational thesis, but I've never seen that in a trade biography. Again, why not just leave out "I think" and make the statement?
Astonishing in the book was Gill's claim that she read a a 19th century, hand-written document and believed she could identify the writer of that document (Emma Ware) because Gill had seen Ware's signature before. From a signature? No.
As for feminism - at one point in the narrative a woman wants her husband to move away from working with the attractive and unmarried MBE and he does. Gill refers to this man as "henpecked." Oops.
And Gill more than once uses that most patriarchal of terms, "illegitimate."