The membership of the Organization shall be open to men and women who are 18 years of age or older and are lineal descendants of Saints. The term “saint” is applied to those persons canonized by the Catholic Orthodox Church, any church in the Eastern Orthodox Communion and the Roman Catholic Church. The list of approved Saints for may be found on the web site. Genealogies for Saints from monarchs may be found in Alan J. Koman's book, A Who's Who of Your Ancestral Saints.