By 1917, the Hathaway Mills would grow to contain 108,000 ring and mule spindles and 3,400 looms  for the production of fine cotton goods, for which the humid seaside location of New Bedford was well suited.
By the 1960s, Berkshire Hathaway had declined to seven plants and 6,000 employees, but still annually produced one quarter of a billion yards of material that sold for more than $60 million. The assets, and a sizable amount of cash on the balance sheet, caught the eye of Warren Buffett, an up-and-coming but little-known investor from Omaha, Nebraska.
Through his Buffett Partnership Limited investment firm Buffett started buying stock in Berkshire at $7.60 a share. He eventually paid an average of $14.86 a share, or a total of $14 million, and took control of the company on May 10, 1965.
In 1985, the last textile operations were shut down. A portion of the mills, including the former office building were torn down January 14, 2014.
- Official American Textile Directory, 1917, Bragdon, Lord & Nagle Co., New York, publishers
- "Providence Journal Article July 10, 2006". Archived from the original on September 19, 2007. Retrieved June 25, 2008.
- Steve, DeCosta (14 January 2014). "Historic Berkshire Hathaway mill is torn down". SouthCoast Today. Retrieved 14 January 2014.