The Vidovic families of Livno are 1st mentioned in 1815 when the last name was recorded in a registry indicating deaths from plague. They are recorded as being from the villages of Dobro, Lusnic, and Kovacic. There is no earlier mention of them because prior to this there last name was Pravdic. The Pravdici, however, are 1st mentioned as early as 1741/42 (again from the village of Dobro). Today, there are Vidovici in Dobro, Srdevic, and many other villages in the Livno area.
I don't know anything regarding the Ceko family but hopefully someone else out there might know something.