German male non-fiction writers

Felix Ludwig Julius Dahn (9 February 1834 – 3 January 1912) was a German law professor and nationalist author, poet and historian.

Friedrich Christian Carl von Bodelschwingh (* 6 March 1831 in Tecklenburg; † 2 April 1910 in Bielefeld-Bethel), better known as Friedrich von Bodelschwingh the Elder, was a German theologian and politician. He is remembered as the founder of the v. Bodelschwinghsche Anstalten Bethel charitable foundations.

Adrian Ludwig Richter (September 28, 1803 – June 19, 1884) was a German painter and etcher, who was strongly influenced by Erhard and Chodowiecki. He was a representative of both Romanticism and Biedermeier styles.
He was the most popular, and in many ways the most typical German illustrator of the middle of the 19th century. His work is described as typically German and homely as are the fairy-tales of Grimm, for whom he produced several woodcuts.

Helmut Thielicke (German: [ˈhɛlmuːt ˈtiːlɪkə]; 4 December 1908 in Wuppertal – 5 March 1986 in Hamburg) was a German Protestant theologian and rector of the University of Hamburg from 1960 to 1978.

Karl Ferdinand Gutzkow ((1811-03-17)17 March 1811 in Berlin – (1878-12-16)16 December 1878 in Sachsenhausen) was a German writer notable in the Young Germany movement of the mid-19th century.

Alfred Edmund Brehm (German pronunciation: [ˈalfʁeːt ˈʔɛtmʊnt ˈbʁeːm]; 2 February 1829 – 11 November 1884) was a German zoologist, writer, director of zoological gardens and the son of Christian Ludwig Brehm, a famous pastor and ornithologist.
Through the book title Brehms Tierleben, which he co-authored with Eduard Pechuël-Loesche, Wilhelm Haacke, and Richard Schmidtlein, his name became a household word for popular zoological literature.

Paul Gerhard Natorp (24 January 1854 – 17 August 1924) was a German philosopher and educationalist, considered one of the co-founders of the Marburg school of neo-Kantianism. He was known as an authority on Plato.

Karl Koller (22 February 1898 – 22 December 1951) was a German General der Flieger and the Chief of the General Staff of Nazi Germany's Luftwaffe during World War II.

Ludwig Pastor, later Ludwig von Pastor, Freiherr von Campersfelden (31 January 1854 – 30 September 1928), was a German historian and a diplomat for Austria. He became one of the most important Roman Catholic historians of his time and is most notable for his History of the Popes. He was raised to the nobility by the Emperor Franz Joseph I in 1908. He was nominated for the Nobel Prize in Literature six times.

Heinz Haber (May 15, 1913 in Mannheim – February 13, 1990 in Hamburg) was a German physicist and science writer who primarily became known for his TV programs and books about physics and environmental subjects. His lucid style of explaining hard science has frequently been imitated by later popular science presenters in Germany.