Katherine (Kate) McCaffery was a member of the Holy Order of MANS (HOOM). She is among those who stayed with the group after it joined the Holy Orthodox Archdiocese of Vasiloupolis and began calling itself Christ the Saviour Brotherhood (CSB).
McCaffery was the Executive Secretary of American Orthodox Mission to Russia, sometimes called Russky Palomnik Orthodox Mission. She was also the designated agent for service of process for the HOOM corporation from at least 1999. She continued in this position after the group officially changed its name to CSB in May of 2002.