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Alfred Kinsey
Alfred Kinsey 1955.jpg
Kinsey in Frankfurt, November 1955
Born
Alfred Charles Kinsey

(1894-06-23)June 23, 1894
Died August 25, 1956(1956-08-25) (aged 62)
Education
Spouse(s)
Clara McMillen
(m. 1921)
Children 4
Scientific career
Fields Biology
Institutions Indiana University Bloomington
Doctoral students

Alfred Charles Kinsey (/ˈkɪnzi/; June 23, 1894 – August 25, 1956) was an American biologist, and professor of entomology and zoology.

Early life and education

Alfred Kinsey was born on June 23, 1894, in Hoboken, New Jersey, the son of Sarah Ann (née Charles) and Alfred Seguine Kinsey. He was the eldest of three children. His mother received little formal education; his father was a professor at Stevens Institute of Technology.

Kinsey's parents were devout Christians. His father was known as one of the most devout members of the local Methodist church. Most of Kinsey's social interactions were with other members of the church, often as a silent observer, while his parents discussed religion. Kinsey's father imposed strict rules on the household, including mandating Sunday as a day of prayer and little else.

Kinsey's parents were poor for most of his childhood, often unable to afford proper medical care. This may have led to a young Kinsey receiving inadequate treatment for a variety of diseases including rickets, rheumatic fever, and typhoid fever. His health records indicate that Kinsey received suboptimal exposure to sunlight (often the cause of rickets, before milk and other foods were fortified with vitamin D) and lived in unsanitary conditions for at least part of his childhood. Rickets led to a curvature of the spine, which resulted in a slight stoop that prevented Kinsey from being drafted in 1917 for World War I.

At age 10, Kinsey moved with his family to South Orange, New Jersey. Also at a young age, he showed great interest in nature and camping. He worked and camped with the local YMCA throughout his early years, and enjoyed these activities to such an extent that he intended to work for the YMCA after completing his education. Kinsey's senior undergraduate thesis for psychology, a dissertation on the group dynamics of young boys, echoed this interest. He joined the Boy Scouts when a troop was formed in his community. His parents strongly supported this (and joined as well) because the Boy Scouts was an organization that was based on the principles of Christianity. Kinsey worked his way up through the Scouting ranks to earn Eagle Scout in 1913, making him one of the earliest Eagle Scouts. Despite earlier disease having weakened his heart, Kinsey followed an intense sequence of difficult hikes and camping expeditions throughout his early life.

In high school, Kinsey was a quiet but hard-working student. While attending Columbia High School, he devoted his energy to academic work and playing the piano. At one time, Kinsey had hoped to become a concert pianist, but decided to concentrate on his scientific pursuits instead. Kinsey's ability to spend immense amounts of time deeply focused on study was a trait that would serve him well in college and during his professional career. He seems not to have formed strong social relationships during high school, but earned respect for his academic ability. While there, Kinsey became interested in biology, botany and zoology. Kinsey was later to claim that his high school biology teacher, Natalie Roeth, was the most important influence on his decision to become a scientist.

Kinsey approached his father with plans to study botany at college. His father demanded that he study engineering at Stevens Institute of Technology instead. At Stevens, he primarily took courses related to English and engineering, but was unable to satisfy his interest in biology. Kinsey was not successful there, and decided engineering was not a field at which he could excel. At the end of two years at Stevens, Kinsey gathered the courage to confront his father about his interest in biology and his intent to continue studying at Bowdoin College in Brunswick, Maine, where he majored in biology.

Research on entomology

In the fall of 1914, Kinsey entered Bowdoin College, where he studied entomology under Manton Copeland, and was admitted to the Zeta Psi fraternity, in whose house he lived for much of his time at college. In 1916 Kinsey was elected to the Phi Beta Kappa society and graduated magna cum laude, with degrees in biology and psychology. Alfred Seguine Kinsey did not attend his son's graduation ceremony at Bowdoin, possibly as another sign of disapproval of his son's choice of career and studies.

Kinsey continued his graduate studies at Harvard University's Bussey Institute, which had one of the most highly regarded biology programs in the United States. It was there that Kinsey studied applied biology under William Morton Wheeler, a scientist who made outstanding contributions to entomology. Under Wheeler, Kinsey worked almost completely autonomously, which suited both men quite well.

Atrusca brevipennata imported from iNaturalist photo 177598458 on 25 October 2023
Oak-apple galls induced by Atrusca brevipennata, one of the wasp species first described by Kinsey

Kinsey wrote his doctoral thesis on gall wasps, zealously collecting samples of the species. He traveled widely and took 26 detailed measurements of hundreds of thousands of gall wasps; his methodology was itself an important contribution to entomology as a science. In 1919, Kinsey was awarded a ScD degree by Harvard University, and he accepted an academic post in biology at Indiana University. In 1920 he published several papers under the auspices of the American Museum of Natural History in New York City, introducing the gall wasp to the scientific community and describing its phylogeny. Of the more than 18 million insects in the museum's collection, some 5 million are gall wasps collected by Kinsey.

Kinsey wrote a widely used high-school textbook, An Introduction to Biology, which was published in October 1926. The book endorsed evolution and unified, at the introductory level, the previously separate fields of zoology and botany.

An Introduction to Biology was unlike any other textbook on the market ... Kinsey's textbook was noteworthy for the strong position it took on evolution ... In his textbook Kinsey laid out the basic facts of evolution in a manner-of-fact matter, as though he were discussing the life cycle of the fruit fly. ... The chapter called "Further Evidence of Change" was especially blunt ... Kinsey defined evolution as "the scientific word for change", and while he acknowledged that there are some people who "think they don't believe in evolution", he tried to show his students the folly of such reasoning. To find proof of evolution, students had only to look at things they used daily ... Kinsey ridiculed the man who denounced evolution but owned a new breed of dog or smoked a cigar made from a recently improved variety of tobacco, saying, "When he says he doesn't believe in evolution, I wonder what he means."

Kinsey co-authored Edible Wild Plants of Eastern North America, published in 1943, with Merritt Lyndon Fernald. The original draft of the book was written in 1919–1920, while Kinsey was still a doctoral student at the Bussey Institute, and Fernald was working at the Arnold Arboretum.

Personal life

First Street 1320, Kinsey House, Vinegar Hill HD
Kinsey's home in Bloomington

Kinsey was raised as a Methodist, and for a time converted to a much less fundamentalist Congregationalism. During his studies at Harvard he apparently became agnostic or atheist, replacing religious fervor with fervor for science. He married Clara McMillen in 1921. Their marriage ceremony, like his college graduation, was avoided by Alfred Sr. The couple had four children. Their first son, Donald, born in 1922, died from the acute complications of juvenile diabetes in 1927, just before his fifth birthday. Their first daughter, Anne, was born in 1924, followed by Joan in 1925, and then by their second son Bruce in 1928.

Clara McMillen yearbook photo
Clara McMillen in the Indiana University yearbook, 1921

Kinsey designed his own house, which was built in the Vinegar Hill neighborhood of Bloomington, Indiana, at 1320 First Street. There he practiced his deep interest in gardening.

Kinsey died on August 25, 1956, at the age of 62. The cause of his death was reported to be a heart ailment and pneumonia. Kinsey was buried at Rose Hill Cemetery in Bloomington, Indiana.

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