When Grandpa Was A Boy, Were There Any Dinosaurs?

Tag archive: Chilmark

Local Language

1952: From the 18th until the 20th century, the population of Martha’s Vineyard, off the coast of Massachusetts, included a disproportionately large number of deaf people. Isolated farming and fishing communities, and consequent intermarriage, ensured that the defective gene passed from generation to generation.

In the 19th century, when the national average in the United States was one deaf person in roughly 6,000, the figure for Martha’s Vineyard was one in 155. The concentration of deaf people was greatest at the western end of the island, the up-Island; in Chilmark, one in 25 was deaf.

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