 Although it has been stated that Cartwright was officially declared the inventor of the modern game of baseball by the 83rd United States Congress on June 3, 1953, the "Congressional Record", the "House Journal", and the "Senate Journal" from June 3, 1953, did not mention Cartwright.Cartwright was born in 1820 to Alexander Cartwright Sr. (1784–1855), a merchant sea captain, and Esther Rebecca Burlock Cartwright (1792–1871).Alexander Jr. had six siblings.