The Wait Window is now above the alter in the new St. Margaret's Chapel located adjacent to the Commons of the new church. It originally was above the altar in the original Christ Church built in 1882.

Although there were Episcopalians in Rolla in 1877 (the first service had been in 1869), there was no church structure. The first Director of the School of Mines, Charles P. Williams, was an Episcopalian, and he had worked toward the construction of a building for the congregation when he left.

Charles Edmund Wait, an Episcopalian, with his wife, Lelia (Beasley) Wait, came to Rolla in 1877. He had been selected as the second Director of the small and struggling Missouri School of Mines; he was only 28 years old. Wait helped accelerate the building program. In fact, he drew up the plans for the building the was constructed in 1882 on the 10th and Main Street lot donated to the Church by Mr Charles Bishop.

Charles and Lelia Wait purchased the stained glass window for the chancel of the new church According to the Rolla Herald of May 11, 1882, "The chancel has in its rear a large and very fine Gothic window of stained glass made by Sutter & Company of St. Louis, the colors being of the most brilliant hues, and reflecting rays of variegated light throughout the entire church. It is backed on the exterior for protection by a woven wire screen." It is thought that the window is dedicated in honor of their infant son William who had died in Rolla.