Helen Gillis in Court in Madison, Wisconsin, upon the revokation of her probation shortly after the death of her husband in a shootout with FBI Agents Sam Cowley and Ed Hollis. Both agents were killed in the shootout, as was Lester Gillis.
Helen remained close to Gillis's family. His sister, Juliette Fitzsimmons, cared for Helen's children in her Chicago home when Helen went out on the road with her husband.
She died in 1987 and is buried in Chicago. Although she died over fifty years after her husband, she is buried next to him in St. Joseph's Cemetary in Chicago.