Justice Oliver Wendell Holmes, Jr.
Unless you are a law student, many biographies of Holmes may be academic and tiresome. But one biography brings Justice Holmes out of legal terms into human terms. Published in 1944, this book for non-specialists is Yankee from Olympus by Catherine Drinker Bowen. She follows him from birth and boyhood in Boston through Harvard College and his service in the Civil War. Near the end, she recalls that after retiring in 1932 from three decades on the Supreme Court, Holmes was visited one morning by the newly elected President of the United States, Franklin D. Roosevelt. FDR found Holmes, then 92, still in bed, reading a book. When asked what he was doing, Holmes told the President, "Improving my mind."
Bonus: Yankee from Olympus may not be available at your local library, but the full-text is available online. Just open the link below; then sweep your cursor right or left to turn the pages forward or backward. Prepare to enjoy a book you will cherish forever. https://archive.org/stream/