Historical Development of Kinship Studies: From Morgan to Schneider

Few topics in social science have travelled as long a road as kinship. What began as a Victorian fascination with family trees in tribal societies eventually became one of the sharpest lenses for understanding gender, power, and culture. The journey from Lewis Henry Morgan’s 19th-century charts of “blood” relations to David Schneider’s claim that kinship might not even exist as a universal category is also the story of how scholars learned to separate biological facts from cultural meanings. This shift matters because it shaped how we now think about family, marriage, and the categories of “man” and “woman” themselves.

The Morgan moment: where kinship studies began 🔗

The systematic study of kinship is almost universally traced back to the American lawyer-turned-ethnologist Lewis Henry Morgan. His 1871 volume Systems of Consanguinity and Affinity of the Human Family, published by the Smithsonian, is widely treated as the founding text of the field. Morgan compared the kinship terminologies of over a hundred societies and argued that all human groups organise themselves around two basic principles: consanguinity, or kinship through blood, and affinity, or kinship through marriage.

This was a radical move at the time. By treating the terms people use for “mother”, “uncle”, “cousin”, or “in-law” as data, Morgan turned the family into an object of scientific comparison. According to the Encyclopaedia Britannica, his work inaugurated the modern anthropological study of kinship systems as the basic organising principle in most preindustrial societies. He also introduced an influential distinction between classificatory systems (where many relatives are grouped under one term, like calling several older men “father”) and descriptive systems (where each relative is named separately).

Why Morgan still matters and why he is also criticised 🔗

Morgan tied his kinship data to a grand evolutionary scheme. In Ancient Society (1877), he proposed that humanity progressed through stages of “savagery”, “barbarism”, and “civilisation”, with family forms evolving from group marriage toward the monogamous nuclear household. This evolutionary ladder has been almost entirely rejected by later scholars as ethnocentric. Yet his comparative method survived. As the Smithsonian Institution Archives note, his book created a new field of inquiry in anthropology, and figures as different as W. H. R. Rivers, Robert Lowie, Meyer Fortes, and Claude Lévi-Strauss all built on what he started.

The descent school: Fortes, Radcliffe-Brown, and the genealogical grid 🔗

The first half of the 20th century belonged to what became known as descent theory. British social anthropologists, especially A. R. Radcliffe-Brown and his student Meyer Fortes, treated kinship as the skeleton of social structure. Lineages, clans, and unilineal descent groups were studied as the units that held non-state societies together. Marriage existed, but the analytical spotlight was on the line of descent flowing from parent to child.

The genealogical method assumed that “father”, “mother”, “son”, and “daughter” were biologically obvious starting points, and that cultures simply elaborated on these primary facts. Anthropologists drew kinship diagrams using triangles for men and circles for women, plotting marriages and descent lines as if they were branches of biology. The job of the ethnographer was to map the structure.

Lévi-Strauss and the alliance turn 🔗

The next major shift came from the French structuralist Claude Lévi-Strauss. In his 1949 work The Elementary Structures of Kinship, he argued that marriage, not descent, was the true engine of kinship. For Lévi-Strauss, the most important kinship relations were the horizontal links between groups created when women moved between them as wives.

He rooted this in two ideas: the universal incest taboo and the principle of reciprocity. Britannica summarises the logic well, noting that for Lévi-Strauss, whereas British structural functionalists saw descent ties as paramount in kinship, the relations between groups had priority in his structuralist analysis. Marriage, in this view, is less about romance and more about the formation of an alliance between previously unrelated groups, with the incest taboo forcing people to “marry out” and create wider social networks.

This descent-versus-alliance debate is more than an academic squabble. In the South Asian context, scholars like Louis Dumont and Irawati Karve used these tools to argue that North Indian kinship leaned more on descent principles while South Indian Dravidian systems carried strong alliance logic, where cross-cousin marriage repeatedly renewed bonds between specific lineages.

Schneider’s earthquake: kinship as a system of symbols 🔗

By the 1960s, the genealogical grid had become a comfortable orthodoxy. Then David M. Schneider, an American cultural anthropologist trained at Harvard and based for most of his career at the University of Chicago, set off what is often called the “Schneider earthquake”.

His 1968 book American Kinship: A Cultural Account made an apparently small but explosive move. Instead of studying a “tribal” society, he turned the lens on middle-class Americans. He asked them what they meant by relatives. The answers revealed that even in a society that loudly insists kinship is about “blood”, what actually organises family life is a tangle of cultural symbols. The University of Chicago Press describes the book as the first attempt to deal systematically with kinship as a system of symbols and meanings, and not simply as a network of functionally interrelated familial roles.

Schneider argued that American kinship rested on two core symbols, often opposed: nature (blood, shared biogenetic substance) and law (the code of conduct expected between kin). A spouse was kin “by law”, a sibling kin “by nature”, and a child of adoption a careful blend of the two. The point was that “blood” itself was a cultural symbol, not just a biological fact.

The 1984 critique and the “non-subject” claim 🔗

Schneider pushed the argument even further in A Critique of the Study of Kinship (1984). Drawing on his fieldwork on the Micronesian island of Yap, he claimed that anthropologists had been projecting their own Euro-American assumption, that biological reproduction defines kin, onto every culture they studied. The American Anthropologist journal observes that Schneider’s critique was so influential that it led him to argue kinship as conventionally defined was effectively a “non-subject” – a category invented by Western anthropologists rather than discovered in the field.

Not everyone agreed. Critics pointed out that his American sample was narrow and that rejecting biology entirely made cross-cultural comparison difficult. Still, his core insight stuck: kinship is not nature wearing a thin cultural costume. It is, all the way down, a system of meanings.

From biological “male and female” to cultural “man and woman” 🔗

Schneider’s symbolic turn opened the door for feminist anthropologists, and this is where kinship studies and gender studies finally met. If “blood” and “relative” were cultural symbols, then so were “mother”, “father”, “male”, and “female”. This was a major break from the early kinship tradition, which had treated the sexual difference between male and female bodies as the unquestioned bedrock on which kinship was built.

The most direct intervention came from Jane Fishburne Collier and Sylvia Junko Yanagisako in their 1987 edited volume Gender and Kinship: Essays Toward a Unified Analysis. They argued that gender and kinship had been wrongly treated as two separate fields and proposed merging them. As one summary puts it, their stated goal was to put gender “at the theoretical core of anthropology” by questioning the boundary between the two fields.

Their key claim was deceptively simple. Just as Schneider had shown that “blood” is a cultural symbol, they argued that “male” and “female” are not transparent biological categories that cultures merely decorate. What it means to be a “man” or a “woman”, who counts as a mother, who is allowed to be a husband or even a wife in social terms, varies dramatically across societies. Studies like Ifi Amadiume’s work on “female husbands” in Igbo society in Nigeria showed that women could occupy social positions usually labelled “male” without changing their biological sex.

Why this matters for studying family in India 🔗

The cultural-construction view has direct payoffs for understanding family life in India. The roles of “daughter-in-law”, “elder son”, or “younger sister” are not just slots filled by biology. They are saturated with expectations about labour, ritual purity, inheritance, and authority. Feminist scholars working on Indian kinship, such as Leela Dube, have shown how everyday practices around food, seed metaphors, menstruation, and naming actively produce gendered persons rather than simply reflect a pre-existing male-female divide. New reproductive technologies, transnational adoption, and changing marriage laws are now adding fresh material to this same debate.

The arc from Morgan to Schneider in one view 🔗

Looking back, the trajectory has a clear shape. Morgan gave anthropology a method and a vocabulary, but he embedded it in a 19th-century evolutionary story. Fortes and the descent theorists treated kinship as social architecture, anchored in lineages. Lévi-Strauss flipped the camera to show the exchange relations between groups. Schneider then asked whether the architecture and the exchanges were really there, or whether they were artefacts of Western thinking projected onto other people’s lives. Feminist anthropologists picked up Schneider’s symbolic insight and used it to dismantle the assumption that biology hands us “men” and “women” ready-made.

None of these positions has been fully discarded. Modern kinship and gender studies routinely combine descent diagrams with symbolic analysis, structural comparison with attention to power and inequality. What has changed is the confidence with which anyone can claim that biology alone tells us what a family is.

What do you think? If “man” and “woman” are partly cultural categories rather than purely biological ones, how should that shape the way we describe the families we grow up in? And which of these thinkers, Morgan, Lévi-Strauss, or Schneider, comes closest to capturing the kinship patterns you observe around you?

References

1. https://en.wikipedia.org/wiki/Systems_of_Consanguinity_and_Affinity_of_the_Human_Family
2. https://www.britannica.com/biography/Lewis-Henry-Morgan
3. https://siarchives.si.edu/collections/siris_sic_3567
4. https://www.britannica.com/topic/kinship/Alliance-theory
5. https://press.uchicago.edu/ucp/books/book/chicago/A/bo42070637.html
6. https://en.wikipedia.org/wiki/David_M._Schneider
7. https://www.encyclopedia.com/history/dictionaries-thesauruses-pictures-and-press-releases/gender-studies-anthropology