His father Michael John Strzok (?) findagrave page with obit, family info http://archive.ph/bruRR
If repeat sorrys
Census records are iffy sauce as people knew they could get away to some degree with lying to the census takers. fwiw:
Was John Strzok born as Joannes Strzok? There are several records that may be close:
Joannes Strzok baptism: 22 August 1858 Brzeźnica, Brzeźnica, Kraków, Poland
To Martinus Strzok & Catharina Zach
Joannes Strzok baptism: 24 December 1857 Brzeźnica, Brzeźnica, Kraków, Poland
To Simon Strzok & Victoria Zarzycka
Joannes Strzok baptism: 27 April 1856 Brzeźnica, Brzeźnica, Kraków, Poland
To Adalbertus Strzok & Hedvigis Wojta
Joannes Strzok baptism: 7 May 1861 Brzeźnica, Brzeźnica, Kraków, Poland
To Laurentius Strzok & Sophia Przybycien