The St. John Window was the altar window, given in 1867, by Allen Bowie Davis in memory of his son. When the church was renovated and enlarged to double the size in 1980 it was moved to the West transept.

Our church is named for St. John the Evangelist, Bishop of the Church of Ephesus. In the window he is portrayed wearing Bishop's robes. Other symbols in the window include an eagle, scroll, chalice and serpent, all symbols of St. John.

The window inscription says,

In Memory of William Wilkins Davis, son of Alan Bowie and Hester Davis, born 3-27-1842, fell asleep in Jesus 3-2-1866.

He had gone to northern Midwest for health reasons, was married tothe daughter of Bishop Henry Benjamin Whipple, the first Episcopal Bishop of Minnesota and killed there at the age of 24.