DEATH:
John is listed in the 1880 census at 12 yrs of age, but is not listed in his father's obituary in 1895 which leads me to believe that he may have died in the intervening years.

DEATH:
Illinois Statewide Death Index, Pre-1916, lists a John Rozhon, died Sep 24, 1890, in Chicago, age 21 years (Cert #00011846). This is a strong possibility for this individual's (RIN 3, Custom ID 5.1) date of death.