The collection largely inherited the material of the former Museum of Revolution, and because of the Homeland War in the 1990s it collects, preserves and handles objects from that period of Croatian history.

The Museum regularly receives items from World War II, usually part of the family’s legacy of the war-time warrior as a partisan fighter or detainee, as well as various postwar honors and recognition. Among them were the brothers Franelic, Mirko and Stanislav. Stanislav’s wife, Adel, donated her husband’s drawings museum and cover from Fraschette di Alatri’s Italian camp in 2007 and a memorial plaque and a charter Tuhobić in 1941 Mirko Franelić. Jadranka Kaloper Bakrač, niece of Dr. Sc. Maurizio Magasic (Rijeka, 1913 – Zagreb, 2009), the participant of the NOB and councilor of ZAVNOH, donated 48 of his social awards and honors in 2008, including the Nosicac monument of 1941 and the Order of Croatian Plether (2003).

The shocking diary entries of Milojke Mezorane, written during the World War II, were handed over to the Museum in 2009 by Dr. Mihael Sobolevski. Milojka Mezorana, a daughter Ana Frank (M. Sobolevski), a 16-year-old high school student at the time of the Italian occupation of Sušak, wrote her first diary from 1941 until late 1942 and then destroyed it. The second diary she wrote during the German occupation from September 26 to December 24, 1943, when she joined the anti-fascist resistance and her apartment became a warehouse for the Partisan press. In mid-August 1944 she was arrested and taken first to Auschwitz, then to a camp in Chemnitz as well as some other German camps. Having survived, she returned home on July 26, 1945, and found her hidden diary in the apartment, which she then filled with horrific experiences she went through until her return to Sušak.