Social networks are considered the latest development in how humans interact with each other. This is, however, not correct as a social network is based on relationships and not limited to electronic communication. Social networks are an integral part of human existence and are as old as humanity itself. The term has been popularised due to the rise of social electronic media.
Before modernity, before the rise of individualism, social networks were defined by kinship, which was mainly based on genetic connections between people. Kinship is, however more than a network of genetic relationships as it is the social language in which society is expressed. In pre-modern collective societies kinship defined the boundaries of society. In the time before Facebook, social networks in Catholic societies were recorded in church books.
I have undertaken research to determine the kinship boundaries for the Southern Dutch agricultural hamlet of Heugem, combining the 1796 census and local church records. In 1796 the hamlet consisted of 39 houses with 172 inhabitants, of which 54 below the age of 12. Almost 90% of the population was born in Heugem. The social networks of genealogical relations have been been graphically displayed using the Pajek software for the analysis of large networks. The analysis shows a high level of interrelatedness within the community, with the priest as the only person without relatives. The research also shows that the overwhelming majority of people were born and died in Heugem. As such, a high correlation between geographic and kinship boundaries was found.
Nodes for men are triangles and nodes for women are circles. Blue nodes indicate people born in Heugem, red nodes indicate those from outside the town, and white nodes indicate deceased people. Parent-child relationships are indicated with black arrows, while marriages are denoted with blue lines. Click on the diagram for an enlarged view.
The preliminary results of this research will be presented at the XXXth Frontiers in Genealogy and Heraldry conference in Maastricht, the Netherlands.