In 1875 the opportunity came for Susan and Anna Warner to communicate their faith to the cadets at West Point. At the request of several cadets, Susan began a Bible class for them on Sunday afternoons in the Cadet Chapel. Anna tells us:, "The first day, there was a very large gathering, curiosity helping on the numbers. After that, it varied from week to week, as must be always, I suppose; especially among Cadets, where guard duty sometimes interferes; and where Sunday is the free day for seeing friends."

"At home, in the summer, they met in our tent near the house, the forage caps tossed out upon the grass; the gray figures in all sorts of positions in and out of the tent".

Following is a vivid account of these classes written by a former cadet and published in 1925 by Olivia Phelps Stokes in her biography of the sisters.

"The visits to Constitution Island were regarded as a great privilege, for not only did they make a break in the severe routine of the daily life but they enabled the boys to roam further a field than was possible at the Academy, where the restrictions of the cadet limits were pretty irksome to boys accustomed to the free run of the town or country. So the privilege of going to Constitution Island as one of "Miss Warner's boys" was eagerly sought and highly prized. Every Sunday afternoon during the summer encampment the sisters would send their elderly man of all work after the favored ones. He pulled the old flat-bottomed boat across the river to the West Point dock, where the boys with the coveted permits were wailing for him. Usually the trip back was accompanied with more or less excitement, for the boat was always loaded to the last inch of its carrying capacity.

Miss Susan Warner awaited her guests in the orchard. She always sat in the same big chair supported by many cushions. She was a frail little woman with a long face deeply lined with thought and care, lighted with large, dark very brilliant eyes. As she sat in her chair with the boys in a semi-circle around her on the grass she looked like a print from Godey's Lady's Book of half a century before. She always wore silk dresses of a small flowered pattern, made with voluminous skirts of wonderful stiffness, and rustle, and small close fitting bodices. A rich Paisley shawl was always around her shoulders and a broad black velvet ribbon was bound around her hair, which was only slightly gray.

After each of the boys had read a Bible verse. Miss Warner, choosing her subject from some New Testament text, talked to them for perhaps half an hour until her enthusiasm and interest had obviously almost exhausted her small strength. Her English was the best and purest I have ever heard, and as she went on and her interest grew her eyes shone, like stars and her voice became rich and warm. There was never any cant or sectarianism, and she always gave to the boys the brightest and most optimistic side of the faith she loved so well. When she had finished and lay back pale and weary against her cushions her sister. Miss Anna, came down from the house with the rare treat of the whole week, tea and homemade ginger-bread. After that the two sisters and the boys talked over the things of the world that seemed so far from that peaceful quiet orchard. The boys confided their aims and ambitions, and the sisters in the simplest, most unostentatious way sought to implant right ideals and principles. Miss Warne r never forgot any of her boys, and up to the time of her death kept up a correspondence with many of them. This correspondence must have been voluminous, for it embraced men in every branch of the service, and included alike distinguished officers and cadets who had failed. . . "

After the death of Susan Warner in 1885, Anna continued the Bible classes for cadets. Each week Buckner, her "elderly man of all work" would row her over to West Point to teach her Cadet Bible Class. She always brought with her individual nosegays of flowers from her garden to brighten up their rooms. Even though she often remained on the island up through early December, she never failed to meet her class. One time, in late November, this intrepid lady records that she started out, with Buckner rowing the boat, but was forced to turn back midway in the river because of storm and wind. So the classes continued up until the time of Anna Warner's death in 1915.