Eva Dugan
Eva Dugan was executed by hanging at the Arizona State Prison in Florence on February 21, 1930, according to the Arizona Department of Corrections, Rehabilitation and Reentry. A 2017 Phoenix New Times article reports that the rope severed her head during the execution, in front of about sixty witnesses. That account says the botched hanging led the Arizona Legislature to switch to gas chamber executions. The same article notes that she was the last woman Arizona executed.
Cause of death, as reported: Executed by the state. Accounts say the rope severed her head during the hanging, in front of about sixty witnesses, and that the botched execution led the Legislature to switch to gas chamber executions.
Reported by: Arizona Department of Corrections, Rehabilitation and Reentry (the agency that held her); a 2017 news article (reporters).