1. Kazimierz Franciszek Vetulani was a Polish civil engineer, professor at the Lviv Polytechnic, member of the Polish Mathematical Society, author of several dozen papers in the fields of technology and mathematics, as well as in the field of musical scale theory.
Kazimierz Vetulani was born on 3 January 1889 in Sanok, then within the Kingdom of Galicia and Lodomeria; the son of Roman Vetulani, a high school professor, and Matylda nee Pisz.
Kazimierz Vetulani's mother died on 15 December 1891, when Kazimierz Vetulani was less than three years old.
Kazimierz Vetulani was raised by his father and his second wife, Elzbieta nee Kunachowicz.
Kazimierz Vetulani had five younger, half-siblings: brothers Zygmunt, Tadeusz and Adam, and sisters Maria and Elzbieta.
In 1906, Roman Vetulani died of a heart attack, chanting six children, including the then-seventeen-year-old Kazimierz.
In 1907, Kazimierz Vetulani passed the matriculation examination with distinction at the Queen Sophia High School in Sanok.
Kazimierz Vetulani made scientific and technical travels to Italy, Austria, the Czech Republic and Germany, where he visited the construction sites of large partitions of valleys, large bridges, boulevards and river regulations.
Kazimierz Vetulani was promoted to the rank of second lieutenant on 1 September 1915, and then to the rank of lieutenant on 1 November 1917.
Kazimierz Vetulani was promoted to the rank of captain in the corps of railway officers on 1 June 1919.
Kazimierz Vetulani made contact with professors of the Jagiellonian University.
Kazimierz Vetulani was assigned to the District Officers' Staff No V and was then on the records of the Poviat Supplementary Command of the City of Krakow.
Kazimierz Vetulani obtained the academic degree of road and bridge engineer at the Faculty of Civil and Water Engineering of the Lviv Polytechnic in April 1935.
In Lviv, Kazimierz Vetulani lived by himself at the 31 Obertynska Street, on the second floor.
Kazimierz Vetulani lectured in general mechanics, strength of materials and hydromechanics.
The name of Kazimierz Vetulani was mentioned twice in the testimony of Stefan Banach, submitted in 1944 to the Soviet authorities, regarding the German murders of Polish scientists and intellectuals.
Kazimierz Vetulani was the author of several dozen scientific papers published, among others in the Czasopismo Techniczne and Przeglad Techniczny, including over fifteen technical papers, four mathematical papers, one original lecture script and several papers on the theory of musical scales.
Kazimierz Vetulani published works in Italian, Spanish, German and English, and was fluent in Italian.
Kazimierz Vetulani translated into Polish, among others one work and lecture by the Italian scholar Tullio Levi-Civita.
Kazimierz Vetulani's name was on memorial plaques and other objects commemorating the murders of professors from Lviv universities.
In 1962, Kazimierz Vetulani was commemorated among other people mentioned on the plaque of the Mausoleum of Victims of World War II at the Central Cemetery in Sanok.