Hugo Tetrode was born in 1895.
Hugo Tetrode died in 1931.
Tetrode original paper: Die chemische Konstante der Gase and das elementare Wirkungsquantum I don't know about Sackur
A tetrode is an electronic tube with four electrodes; cathode, grid, screen, and plate.
Hugo Valentin was born in 1888.
Hugo Grenzbach was born on December 11, 1900.
Hugo Pratt was born on June 15, 1927.
Hugo Wieslander was born in 1889.
Hugo Alfvén was born in 1872.
Hugo Zöller was born in 1852.
Hugo Karlström was born in 1873.
Hugo Consuegra was born in 1929.
Hugo Flinn was born in 1880.