Jacobus Cornelius "Ko" Janssens (20 December 1889, Rotterdam - 21 August 1970, Epe [1]) was a Dutch boxer who competed in the 1920 Summer Olympics. In 1920 he was eliminated in the first round of the lightweight class after losing his fight to Frank Cassidy. [2]
- ^ Ko Janssens at Sports Reference
- ^ "Ko Janssens". Olympedia. Retrieved 5 August 2021.
 | This biographical article related to a Dutch boxer is a stub. You can help Wikipedia by expanding it. |
Jacobus Cornelius "Ko" Janssens (20 December 1889, Rotterdam - 21 August 1970, Epe [1]) was a Dutch boxer who competed in the 1920 Summer Olympics. In 1920 he was eliminated in the first round of the lightweight class after losing his fight to Frank Cassidy. [2]
- ^ Ko Janssens at Sports Reference
- ^ "Ko Janssens". Olympedia. Retrieved 5 August 2021.
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| This biographical article related to a Dutch boxer is a stub. You can help Wikipedia by expanding it. |