The mission of the St. John's College High School Mothers' Club is to support the school, administration and student body in the spiritual, academic, ethical, charitable, athletic and artistic development of young men and women and to foster the excellent standards of the school.
The first meeting of the Mothers' Club was described in the 1936 yearbook: "Feeling that the home should assume its responsibility in education, in October 1928 five mothers pioneered the plan in a first meeting. Bro. G. Philip was the moderator and Mrs. Wallace E. Mattingly, the first president, remained in that office four years. The organization took the name 'The Mothers' Club of St. John's College.' The fundamental purpose of the club is to aid in coordinating the essential elements of faculty, student body and the home; to promote proper institutional spirit; and to foster and support the fine standards, and the still higher aims, of St. John's College." The Mothers' Club has continued to play an integral role in supporting St. John's and its mission throughout the years.
The Mothers' Club usually meets the first Wednesday of each month in Cassidy Commons. Dinner is served at 6:30 pm. Meetings begin at 7:00 pm and usually end by 8:00 pm.