He attended the Lawrenceville School before entering Princeton. He joined Cottage Club and served as president of the club in his senior year. After graduating he served two years in the Army and attained the rank of second lieutenant.
After leaving the service Sidney began a Wall Street career with First National City Bank and then joined the investment firm of Laird & Co., eventually becoming president of the firm. He loved tennis and squash, but even more he loved his vegetable gardens, staking tomatoes and building trellises for his beans.
Sidney died April 5, 2020, in Charleston, W.Va. He is survived by his wife Azee, five children, and 12 grandchildren.