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Genealogical data and visual design II: mixing metaphors
In our previous post, we discussed Edward Tufte’s notions about the rich visual expression of data, and we introduced some basic metaphors used in genealogical diagramming: trees, fans, roads, timelines, quilts, and networks. We observed any one of these can express perhaps one or two classes of data very well, but often at the expense…
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The Cromar-Robb line II: observations on the phenomenon of generational “drift”
As I continue to build the descendancy chart for Peter Cromar 1690, which focuses on the Cromar side of the Cromar-Robb line, I can’t help but notice oddities in the data as it arrives at a certain critical mass. Patterns of migration and settlement, the frequency with which certain family names enter the line, and…
