Source: 'Yearbook and Directory of Literary Society of St. Jerome 1906 , year 1906.

Source: 'Phone Book - Zagreb 1938 , year 1938.

Source: 'Phone Book - Zagreb 1938 , year 1938.

Source: 'Phone Directory of the Independent State of Croatia 1942 , year 1942.

Source: 'Phone Directory of the Independent State of Croatia 1942 , year 1942.