Businessman. Founder of Western Union. He was a friend of Czar Alexander I of Russia and the then Secretary of State William H. Seward, and persuaded the former to sell Alaska to the United States with the help of a United States government check supplied by the latter.  Family links:  Parents:  Benjamin Sibley (1768 – 1829)  Zilpha Davis Sibley (1771 – 1824)  Spouse:  Elizabeth Maria Tinker Sibley (1815 – 1903)*  Children:  Louise Sibley Atkinson (1833 – 1868)*  Giles Benjamin Sibley (1841 – 1843)*  Hiram Watson Sibley (1845 – 1932)*  Siblings:  Samuel Sibley (1792 – 1858)*  Patty Sibley (1799 – 1806)*  Nancy Sibley (1800 – 1806)*  Hiram Sibley (1807 – 1888) *Calculated relationship