[2] Around the same time, Falls began pressing the Chicago archdiocese to end segregation in their front offices and medical facilities.

He usually received no response and entered into a prolonged conflict with the archbishop, Cardinal Samuel Stritch, who advocated for a slower approach even as race riots ravaged the city.

[1] Falls and his fellow Black physicians would file multiple lawsuits against the city's hospitals, which resulted in the eventual desegregation of not only the religiously affiliated institutions, but the secular as well, by 1964.

[2] Falls, who did not align with the Catholic Worker movement and Dorothy Day on every point, did agree with them on the issue of pacifism and resistance, refusing to serve in World War II.

[2] Falls did, however, battle with the local government in 1953, when, after he desegregated the all white suburb of Western Springs, the city attempted to claim his property via eminent domain (with the support of his racist neighbors).

They had one son, Arthur Jr. Falls is said to have coined the term "the Mythical Body of Christ", which he described as a heresy involving the elevation of the white Catholic experience to that of a normative status, to the exclusion of all other ethnic groups.