1. Kathryn Blair (1) is a pseudonym used by Lilian D. Warren ( -1961).
Ms. Warren also wrote under 2 other pseudonyms: Celine Conway and Rosalind Brett.
2. Kathryn Blair (2) is a pseudonym used by the writing team of Karen Parker and Mary Scamehorn.
This writing team also wrote and published under the pseudonym of Blair Cameron.