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 Bleicher was born in 1899.
Hugo Helsten was born in 1894.
Hugo Arnot was born in 1749.
Hugo Treffner was born in 1845.
Hugo Scheiber was born in 1873.
Hugo Suolahti was born in 1874.