Simpraga/Baljkovic

Looking for information on Simpraga and Baljkovic clans from Dalmatia.

Obrad Simpraga (b. 8 Oct 1925 in Raducic, now part of Croatia) married Olga Baljkovic (b. 1 Oct 1919 Djeverska, now part of Croatia).

Obrad Simpraga's parents were Nicola Simpraga and Vasilija (?) Tisma.Other children of Nicola and Vasilija were:
Ljubica
Mile
Jovo
Cedomir
Jeka
Branko

Olga Baljkovic's parents were Bogdan Baljkovic and Draginia Nadevesa.Other children of Bogdan and Draginia were:
Bozidar
Vuka
Ljubomir
Nada

Any information would be appreciated.

Thanks