Remember the word "attributed".
A) The book is controversial in its details, with Mr. Turnbull confusing one reported lady warrior's father, husband and father-in-law all as her husband.
Links? Sources? I've seen a number of accustions of Dr. Turnbull's "plagiarism" which as an academic I know is essentially the kiss of death to any academic's career as it is their credibility (and ability to get published any further), yet he still manages to get a major publisher like Osprey to keep printing his ostensibly discredited works, so go figure...
B) At least one and I think two of the women are considered legendary because they aren't mentioned in the contemporary records, but only show up in much later plays and novels.
And folk tales sometimes have a firm basis in fact, more so than we are initially led to believe or would later like to accept despite the empirical evidence...
C) The long unbound hair (which would be correct) is the only noticeable difference on the pictures on Mr. Turnbull's website between the appearance of that and a male in armor.
And another aspect is *stature* and *proportions.* Ever seen photos of 442nd RCT GIs? When standing next to the corn-fed Midwestern US variety, the differences are oft-times immediately apparent despite the "General Issue" nature of their equipment.