My grandfather Dusan (or Daniel) Biukovic (surname versions: Biucovich, Biukovich) migrated from Svinica, Yugoslavia (now Croatia) in 1926 and probably died in Buenos Aires, Argentina in 1977. How to find passenger, immigration, residential or other records? Last address street name was Av. Olivera, Buenos Aires. Contact person was: Anna Maria Aurora Garcia Dell Vale.
You have not provided any sources for Dusan's emigration in 1926, or his possible death in 1977, or a date for that last known street address, or birth/baptism details for him, but when I searched Ancestry.com for the exact name that you provided this Find A Grave entry showed up:
Dusan Biukovic BIRTH 1904 Croatia DEATH 1942 (aged 37–38) Croatia BURIAL Jasenovac Concentration Camp Jasenovac, Opcina Jasenovac, Sisacko-Moslavacka, Croatia MEMORIAL ID 114074907
If this is the family required by you as it would appear to be. This would provide a new approach to tracing and extending the coverage of the person and also family required by you via the American records on the family, which are likely to be easier to trace and work with than the South American records from which to move forward in this instance.
Household Role Sex Age Birthplace Dusan Bukurovich Head Male 56 Yugoslavia Solveta Bukurovich Wife Female 51 Yugoslavia Saveta Boldlovich Niece Female 13 Indiana Last Place of Residence: Chicago, Cook, Illinois
United states Census 1940
Dusan Bukurovich United States World War II Draft Registration Cards, 1942 Name: Dusan Bukurovich Event Type: Draft Registration Event Date: 1942 Event Place: Chicago, Cook, Illinois, United States Residence Place: Chicago, Cook, Illinois Gender: Male Employer: Dusan/Bukurovich Birth Date: 15 May 1883