Lorentz Henrik Müller Segelcke

Lorentz Henrik Müller Segelcke (14 November 1829 – 25 October 1910) was a Norwegian military officer, engineer and politician. He served as Norwegian Minister of the Army twice in the 1870s, and was the director-general of the Norwegian State Railways from 1883 to 1899.

He was born at Bogstad as a son of premier lieutenant Christen Arentz Segelcke (1801–1837) and Sofie Teresia Bonnevie (1810–1896). After his father's death, stipendiary magistrate Nils Andreas Thrap became his stepfather.

In July 1855 in Kongsberg he married Christine Augusta Bonnevie (1833–1927). Through her he was a son-in-law of Honoratus Bonnevie and a brother-in-law of Mathilde Dietrichson (née Bonnevie), Lorentz Dietrichson and Jacob Aall Bonnevie. Through Jacob he was an uncle of professor Kristine Bonnevie, judge Thomas Bonnevie, politician Carl Emil Christian Bonnevie and Severin Segelcke. He was also a brother-in-law of his own sister Margretha Henrikke, who married his wife's oldest brother Niels Cornelius Bonnevie. He was a father-in-law of Iver Munthe Daae.

Segelcke attended the Norwegian Military Academy from 1845 to 1848 and the Norwegian Military College from 1849 to 1852. He held the rank of second lieutenant from 1849, and was promoted to premier lieutenant in 1868, captain in 1870 and colonel in 1872. He served in the Engineer Brigade for many years, and also had a parallel career under the road inspector Johannes Benedictus Klingenberg in Christiania from 1855. He studied railway construction abroad between 1856 and 1857, and then worked as an engineer on the Kongsvinger Line until 1862. He was a tutor at the Military College from 1862 to 1872 and at the Military Academy from 1863 to 1866. He served on many public committees, and also had responsibilities in auditing.

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