Joseph Lyon was a prisoner incarcerated during Warden C. P. Hoyt's tenure. The penitentiary record and photograph are the courtesy of the Colorado State Archives.

Prisoner #:	930
When convicted:	September 5, 1883
When received:	September 10, 1883
Crime:	Murder
Sentence:	5 years
County sent from:	Bent
Date of birth:	N/A
Age:	23
Height:	5'-8"
Weight	N/A
Complexion:	Negro
Color of eyes:	N/A
Color of hair:	N/A
Occupation:	Butcher
Education:	N/A
Where born:	Kentucky
Name of parents:	Joseph Maria Lyons-Frankfort, Kentucky
Married or single:	Single
Name of wife or husband and where living:	N/A
Reads:	Yes
Writes:	Yes
Temperate:	N/A
Tobacco:	N/A
Prison before:	N/A
Religion:	N/A
Scars:	Scar corner of right eye. Large scar on left wrist.
Discharged:	June 5, 1886
Paroled:	N/A
Comments:	Mole below right eye. Cut on left temple.