100+ mentions are found for request
different sources from the year —1902 (34) 1906 (16) 1917 (93) 1923—1935 (9) 1938 (27) 1942 (35) 1943 (1) 2007 (10)

Gustav Mastics

Source: 'List of Dignitaries, Officials and Public Servants of the Kingdom of Croatia-Slavonia , year 1917.

Gustav Burian

Source: 'List of Dignitaries, Officials and Public Servants of the Kingdom of Croatia-Slavonia , year 1917.

Gustav Bazala

Source: 'List of Dignitaries, Officials and Public Servants of the Kingdom of Croatia-Slavonia , year 1917.

Gustav Ćmelik

Source: 'List of Dignitaries, Officials and Public Servants of the Kingdom of Croatia-Slavonia , year 1917.

Gustav Kuba

Source: 'List of Dignitaries, Officials and Public Servants of the Kingdom of Croatia-Slavonia , year 1917.

Gustav Mazuth

Source: 'List of Dignitaries, Officials and Public Servants of the Kingdom of Croatia-Slavonia , year 1917.

Gustav Kugler

Source: 'List of Dignitaries, Officials and Public Servants of the Kingdom of Croatia-Slavonia , year 1917.

Gustav Farkaš

Source: 'List of Dignitaries, Officials and Public Servants of the Kingdom of Croatia-Slavonia , year 1917.

Gustav Pongratz Vitez

Source: 'List of Dignitaries, Officials and Public Servants of the Kingdom of Croatia-Slavonia , year 1917.

Gustav Modrušan

Source: 'List of Dignitaries, Officials and Public Servants of the Kingdom of Croatia-Slavonia , year 1917.