Thomas Jefferson Coolidge (August 26, 1831 – November 17, 1920) was a U.S. ambassador and a leading Boston businessman. He was also a co-founder of General Electric.
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Early life
Coolidge was born to a Joseph Coolidge (1798–1879) and Ellen Wayles (Randolph) Coolidge (1796–1876). He was the brother of six siblings.
He was born to a prominent Boston Brahmin family and was a great-grandson of the 3rd United States President Thomas Jefferson, through his maternal grandparents, Thomas Mann Randolph Jr. and Martha Jefferson Randolph. His uncles were Thomas Jefferson Randolph, George Wythe Randolph, His father was a distant relative of Calvin Coolidge. He was an uncle to Archibald Cary Coolidge (1866–1928) through his older brother, Joseph Randolph Coolidge.
Coolidge was educated in private schools in Europe, and graduated from Harvard in 1850.




