I have never heard of Angels and Women. Was it a significant book in Russell or Rutherford's time?
Without knowing what the book is about, I will say that I have read about many women writing things and either using a male pseudonym or giving it no authorship at all. That could be a possibility in this case.
The 1924 revised edition was authorized by Rutherford because they endorsed it in a 1924 Golden Age magazine, which is now called Awake. They renamed the revised version to "Angels and Women" from the original title "Seola".
The original author, Ann Eliza Smith published her other books under her husband's name. This is how her name was shown in authorship to them:
From Dawn to Sunrise - Mrs J.G. Smith (1876)
Seola - Anonymous (1878) - It's written as a diary from an ancient person
Selma - Mrs J. Gregory Smith (1883)
Atla - J.G. Smith (1886)
Notes of Travels - Mrs. J. Gregory Smith (1886)
She gave a special exception to the book, Seola with claiming authorship. The novel mainly reads as a diary and she lets the main character remain the author. The main character's name is Seola, the wife of Japheth.