**National Mob Museum — Leave No Trace** (https://themobmuseum.org/blog/leave-no-trace/): Dr. Wilhelm Loeser as surgeon; hydrochloric acid plus scraping technique; $5,000 fee; procedure at James Probasco’s home; fingertips grew back mostly intact; Alvin Karpis and Handsome Jack Klutas also attempted print removal; Dr. Howard Updegraff 1934 committee finding that grafting required for permanent obliteration; Robert Phillips 1941 skin graft case still identified.
**National Mob Museum — Wooden Gun and Death Mask** (https://themobmuseum.org/blog/john-dillingers-wooden-gun-and-death-mask-preserve-notorious-moments-in-his-life): Crown Point escape details — wooden gun approximately 5.75 inches, safety razor handle as barrel, nails as sights, shoe polish finish; Arthur O’Leary delivered it; Deputy Ernest Blunk; Dillinger and Herbert Youngblood escaped with Thompson submachine guns; Audrey Hancock identified the body; four death masks made; Probasco home used for surgery.
**FBI News Stories — Dillinger’s Last Steps 2008** (https://www.fbi.gov/news/stories/2008/july/dillinger_072208): Anna Sage contacted Purvis July 19; promise to bring cooperation to Department of Labor’s attention; 20+ agents staked out Biograph; Sage confirmed Biograph at 8:30 p.m.; Purvis cigar signal; Dillinger reached for Colt .380; hand-drawn diagram of agent positions.
**Legendsofamerica.com — John Dillinger** (https://www.legendsofamerica.com/20th-johndillinger/): Three agents who fired (Winstead, Hurt, Hollis); none said who killed Dillinger; Coroner Frank Walsh inquest; Purvis said fingerprints from body confirmed identity “without doubt”; Sage deported to Romania 1936, died there 1947; Dillinger said wooden gun used for escape.
**New World Encyclopedia — John Dillinger** (https://www.newworldencyclopedia.org/entry/John_Dillinger): Fatal wound entered back of neck and exited below right eye; sister Audrey Hancock identified body; father said “That’s not my boy”; autopsy reported brown eyes (Dillinger’s were noted as gray/blue in records); autopsy report went missing approximately 50 years, found 1984 in shopping bag at old morgue; 2006 Discovery Channel investigation concluded dead man was Dillinger; Jay Robert Nash’s *The Dillinger Dossier* alternative theory.