Way: 200382632

Added start dates and sources to many Williams College campus buildings

building	college
source	https://www.mass.gov/info-details/massgis-data-building-structures-2-d
start_date	1859
start_date:edtf	1859
start_date:source	https://www.allegrone.com/our-work/williams-college-goodrich-hall#:~:text=Goodrich%20Hall%20is%20a%20Gothic,18%E2%80%9D%20to%2030%E2%80%9D%20thick.

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