American male non-fiction writers

Lloyd Arthur Eshbach (June 20, 1910 – October 29, 2003) was an American science fiction fan, publisher and writer, secular and religious publisher, and minister.

Truesdell Sparhawk Brown (21 March 1906, Philadelphia – 13 January 1992, Houston) was a classical scholar, ancient historian, and co-founder of the journal California Studies in Classical Antiquity, which became the journal Classical Antiquity.

Brigham Dwaine Madsen (October 21, 1914 – December 24, 2010) was a historian of indigenous peoples of the American West, of the people of Utah and surrounding states, and of Mormonism. He was a professor at the University of Utah.Madsen published six books on the Shoshone-Bannock. In later life, he became a proponent of 19th-century, as opposed to anciently, positioned Book of Mormon studies, with his edition of the previously unpublished, early-20th-century Studies of the Book of Mormon by B. H. Roberts (1857–1933).

Eugene Edward "Gene" Campbell (April 26, 1915 – April 10, 1986) was an American professor of history at Brigham Young University.

Arville Lynn Funk (1929–1990) was a lawyer, teacher, author, and an Indiana historian. He was born in Harrison County, Indiana, the son of Herman E. and Elsie McGonigle Funk. He attended public school in Corydon and studied law in New Albany. He opened a law practice in Corydon where he lived most of his life.
A member of the Indiana Historical Society and the Harrison County Indiana Historical and Genealogical Society, Funk was most interested in Indiana's Civil War History. He authored several books about Indiana history and commonly wrote an abbreviated version of his larger works dedicated to Harrison County topics. His many books include:

Tales of Our Hoosier Heritage (1965)
Indiana's Birthplace: a History of Harrison County, Indiana (1966)
Our Historic Corydon (1966)
Hoosiers in the Civil War (1967)
Harrison County in the Indiana Sesquicentennial Year (1967)
A Sketchbook of Indiana History (1969)
The Morgan Raid in Indiana and Ohio (1971)
Historical Almanac of Harrison County, Indiana (1974)
Squire Boone in Indiana (1974)
Revolutionary War Soldiers of Harrison County, Indiana (1975)
Revolutionary War Era in Indiana (1975)
The Battle of Corydon (1976)
Harrison County in the Indiana Sesquicentennial Year (1976)
A Hoosier Regiment in Dixie: A History of the Thirty-Eighth Indiana Regiment (1978)
The Hoosier Scrapbook (1981)He coauthored Indiana's Birthplace: A History of Harrison County, Indiana in 1966 and was a regular contributor the Indiana Magazine of History between 1950 and 1980. He was an advocate of county historical societies and oversaw the creation of historical societies in several Indiana counties.
From 1955 to 1965 he taught high school history. Funk married Rosemary E. Springer on August 25, 1956. They had two children, named Cynthia and Mark. He was admitted to the Indiana bar in 1963 and, in 1965, formed a partnership with Frank O'Bannon and C. Blaine Hays Jr.
Arville Funk died in 1990 and is buried in Corydon's Cedar Hill cemetery.

Alan Freese Wilt (May 14, 1937 – May 7, 2005) was professor emeritus of history at Iowa State University.

Loren R. Graham (born June 29, 1933, in Hymera, Indiana) is an American historian of science, particularly science in Russia.

Robert Stratton "Buck" Coulson (May 12, 1928 – February 19, 1999) was an American science fiction writer, well-known fan, filk songwriter, fanzine editor and bookseller from Indiana.

Jack Frasure Hyles (September 25, 1926 – February 6, 2001) was a leading figure in the Independent Baptist movement, having pastored the First Baptist Church of Hammond in Hammond, Indiana, from August 1959 until his death. He was well known for being an innovator of the church bus ministry that brought thousands of people each week from surrounding towns to Hammond for services. Hyles built First Baptist up from fewer than a thousand members to a membership of 100,000. In 1993 and again in 1994, it was reported that 20,000 people attended First Baptist every Sunday, making it the most attended Baptist church in the United States. In 2001, at the time of Hyles's death, 20,000 people were attending church services and Sunday school each week.

Robin W. Winks (December 5, 1930 in Indiana – April 7, 2003 in New Haven, Connecticut) was an American academic, historian, diplomat, writer on the subject of fiction, especially detective novels, and advocate for the National Parks. After joining the faculty of Yale University in 1957, he rose in 1996-1999 to become the Randolph Townsend Professor of History and Master of Berkeley College. At Oxford University he served as George Eastman Professor in 1992-3, and as Harmsworth Visiting Professor of American History in 1999-2000.