[1] The Croatian Air Force Legion was disbanded on 21 July 1944, the same year Stjepan Horvat was appointed rector of the University of Zagreb.

[5] In the final months of the war, as rector of the University, Horvat participated in a mass rally where he gave a speech in support of the Croatian fascist Ustaše regime.

Horvat emigrated to Argentina, alongside Ante Pavelić, Dinko Šakić and other Ustaše leaders, who benefited from the ratlines.

Horvat is noted as the first person to use hyperbolic functions to ease and simplify problems of numeric calculations in the field of geodetic cartography.

To the honour of Croatian archbishop and martyr Alojzije Stepinac he composed a mass Beata Mariae Virginis.

During the 22nd Conference of Geophysicists and Geodesists held in Buenos Aires 6–11 September 2004, a memorial plate to Stjepan Horvat was revealed in the entrance space of the Military-Geography institute.