The charity was established in Zagreb in 1921 and eight years later established its Chicago branch.
During the 1992-6 war period, the charity sent Croatia and Bosnia-Herzegovina more than US$10 million in assistance.
Money raised on the anniversary celebration will be sent to orphaned children in the eastern Croatian town of Vukovar.
Croatian Deputy Prime Minister and Family, War Veterans, and Inter-Generation Solidarity Minister Jadranka Kosor sent the charity a note, expressing gratitude for its contribution to the development of Croatian-US relations and the assistance provided to Croatia.