People Jan Gruszczyński peoplepill id: jan-gruszczynski-1JG 9 views today 18 views this weekJan GruszczyńskiBiographyListsAlso ViewedListsJan Gruszczyński is in following listsBy field of workNotable politiciansGender:Male, Born in:Years 1900 to 1929By work and/or countryNotable PoliticiansGender:Male, Born in:Years 1900 to 1929By politicsPolish Workers' PartyFrom our partnersSponsoredJan Gruszczyński