Eliza R. Snow lists Fanny Alger and others as one of "Joseph Smith's Plural wives."
Document #1 in Andrew Jenson Papers, MS 17956, Box 49, fd. 16, Church History Library
Joseph Smith's Plural wives
. . .
Eliza [Elizabeth] Durfee
Sarah Cleveland
. . .
Maria Winchester
. . .
Fanny Alger
Brian and Laura Hales explain in the site above, "During her 1886 interview with Jenson, he apparently handed her his list of Joseph Smith’s wives that he was compiling. Eliza added thirteen names in her own handwriting."