Biography
Teddy Jackoski was an Ohio coal miner convicted of assault with intent to murder during the 1928 Ohio miners' strike and sentenced to five to twenty years — held in the state penitentiary, and listed on the ILD's 1929 roster of American class-war prisoners.
The December 31, 1932 Daily Worker book-committee and defense reporting supplies this contemporary context: Teddy Jackowski’s correspondence gives London, Ohio as his prison location and discusses permission to exchange letters; it does not supply a transfer day. Source: https://www.marxists.org/history/usa/pubs/dailyworker/1932/v09-n313-NY-dec-31-1932-DW-LOC.pdf#page=3
The September 8, 1930 Laisve, page 5, reproduces an International Labor Defense political-prisoner directory. Its row prints Teddy Jackoski, a term of 5–10 years, the year 1928 in the sentencing-year column, and confinement or correspondence location Box 511, Columbus, Ohio. This is an attributed historical directory entry; printed years and nominal terms are not exact intake dates or measured time served, and mailing boxes do not independently identify a prison. The directory contains stale or conflicting chronology, so this row does not override independently established conviction, death or release facts. Source: https://www.spauda2.org/laisve/archive/1930/1930-09-08-LAISVE.pdf#page=5
Denied appeal and a reported custody snapshot
The December 18, 1930 Daily Worker identifies Teddy Jackoski, also printed Jackowski in the same article, as an Ohio State Penitentiary prisoner following a mine-strike prosecution in Harrison County, Ohio. It reports a five-to-twenty-year sentence on an assault-with-intent-to-kill accusation, alleges that mine operators framed him, and says the International Labor Defense appealed but was denied a new trial. The article says he had been in prison for the last two years and that the ILD was supporting his wife and four small children with a monthly allowance. The two-year statement is an attributed elapsed-custody snapshot, not a measured completed term: no first admission, final release, exact day count or present-day custody status is inferred. The source's Jackowski spelling is preserved as a name variant of the same individually described miner, not a different prisoner.
Daily Worker, December 18, 1930, original page 2. Contemporary allegations and reported durations are attributed to the newspaper.
The Behind the Bars directory on printed page 4 lists this prisoner under Columbus, Ohio, with five to twenty years, 1928. This is an attributed historical directory entry: the year and nominal term do not establish an intake day, uninterrupted imprisonment, completed service or physical release.