[1] She married Milutin Garašanin [sr], also an archaeologist and academic[2] and the couple subsequently had three daughters, Julija, Sofija and Olivera.

[1][4] In 1951, she and her husband published a gazetteer mapping the archaeological sites in Serbia, Arheološka nalazišta u Srbiji, which was the first effort of its kind in the country.

[1] Arandelović-Garašanin led excavations on numerous important prehistoric sites in Serbia, Macedonia and Montenegro, which included Anzabegovo, Bela Crkva, Kriva Reka, Radanja near Štip, Supska and Žarkovo.

[6] In addition to her fieldwork, Arandelović-Garašanin arranged the collections and identification of the finds at the National Museum, as well as organizing exhibitions featuring the Neolithic history of the Central Balkans, including the Dacian and Illyrian people from the area.

[5] From 1950 through the 1960s, Arandelović-Garašanin and her husband examined new theories on the chronological prehistory of Serbia, based on the methodology of Gero von Merhart and Vladimir Milojčić [de], of the German school of thought,[2][7] The couple became the leading prehistorians after World War II in Serbia[2] with their collaborations on the Starčevo culture and Vinča cultures becoming foundational works.