[5] In September 1941, Karwales' debut was again delayed due to swelling in his feet that led doctors to "relegate him to a hospital cot for treatment.

[7] In 1943, Karwales entered the United States Army Air Forces where he served for almost four years during an after World War II.

[12] According to some sources, Karwales played at the end position for the 1946 Chicago Bears team that won the NFL championship.

[14] A Chicago Daily Tribune article from September 1947 reported that Karwales had played with the Akron Bears in 1946.

[1] His brother, Felix Karwales Jr., was a rookie pitcher for the Cleveland Indians in 1940 before being inducted into the U.S. Army.

[21] He later owned an Oldsmobile dealership named Karwales Olds, inc. located in Wheaton, IL.

His funeral mass was held at St. Catherine Laboure Catholic Church in Glenview, Illinois.