Looking for any information on my great grand aunt, Mrs. Kathy (BOŽANIĆ) VUZIC / VUJIC.

In the attached obituary for my great grandfather (Nick Carlo Bozanich aka Nicolo Maria BOŽANIĆ, b. 15 Aug 1884 in Komiza, Vis, d. 15 Jul 1961 in Astoria, Oregon, USA), it references a sister by the name of "Mrs. Kathy Vuzio" living in Yugoslavia at the time of his death. I'm almost sure the "VUZIO" spelling is incorrect and is instead likely VUZIC or VUJIC.

Kathy's parents were Nicholas Bozanich (b. 1855 in Komiza, Vis) and Winifred (b. 1865 in Komiza, Vis).

Kathy and Nick had a brother, John N Bozanich (b. 2 Jun 1888 on Vis, d. Oct 1963 in Cathlamet, Washington, USA).

Any help would be greatly appreciated.