13 mentions are found for request
different sources from the year —1938 (7) 2007 (6)

Vlado Šumonja

Source: 'Encyclopaedia of Croatian Surnames , year 2007.

Jelenka Šumonja

Source: 'Encyclopaedia of Croatian Surnames , year 2007.

Bojan Šumonja

Source: 'Encyclopaedia of Croatian Surnames , year 2007.