Over
20 percent of very large houses were built in the 1870s and another 26 percent
in the 1880s-1890s.
Notice the slight increase during the 1950s-1970s,
but for the most part very large houses are only typical of the late 19th
century.
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Created by Chris Cronk-Gulcynski, June 15, 1996. Graphs by Brian Meyer, Preston Johnson, and Tanya Jorgenson on June 9, 1997.