Jane Addams

The work Jane Addams did could, arguably, be associated with religion simply due to its nature. Much charity work is connected to religion. Most religious groups have some sort of underlying principle of doing good for others, helping the poor, etc.
Jane Addams was raised a Quaker and her upbringing presumably had an effect on her world-view. She did, apparently, turn away from the Quaker tradition later in life. However, it seems that other experiences in her life had more of an effect than her religion. It appears that she was more strongly affected by the poverty she witnessed: at home as a child and later in Europe.
She does discuss the nature of the early Christian church as being non-resistant and sort of "all loving," so to speak. The ideals of embodying Christ through service to others was prevalent in the early church. Addams mentions that there seemed to be a rebirth of these ideals in America at the time she was writing. She mentions the religious and spiritual force behind the Settlement movement, but also seems to feel that the movement is not strictly or exclusively religious.