Date of Birth: 
About Hassa Horn Sr.
- Hassa Horn Sr.
- (16 March 1837 – 11 December 1921) was a Norwegian civil servant. He was born in Frederiksvern of customs inspector Hans Jokum Horn and Anna Grønbech Aas.
- Together with Alette Gram (1844–1933), whom he married in 1869, he had the son Hassa Horn Jr.
- who was a notable industrialist and married twice; to daughters of Peter Birch-Reichenwald and Johan Steen.
- Their daughter Dorothea was the mother of national housewives' leader Alette Nicolaysen.He finished his secondary education in 1855 and graduated from the Royal Frederick University with the cand.jur.
- degree in 1860.
- After some years as an attorney, he became clerk in the Ministry of Church Affairs in 1864.
- He advanced to assistant secretary in 1873 and deputy under-secretary in 1879.
- In 1886 reached the pinnacle of his career as he was appointed as chief administrative officer of the third magistrate department in Kristiania Municipality, the capital city of Norway.
- He held the position from late 1886 to 1909 with the title burgomaster.
- He was the capital's highest-ranking civil servant responsible for education, libraries and church affairs.He was decorated as a Commander, Second Class of the Order of St.
- Olav and the Order of the Dannebrog.
- He died in December 1921.
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