He died in 1649, and left no issue by his wife, Elizabeth, daughter of William, Lord Spencer.
America grew around a sawmill built by William Spencer and his three brothers in 1907.
"It's our business whether we publish it or not," said William Spencer, Xerox's vice president for research.
William Spencer and Samuel Browning's partnership lasted from 1778 to 1781.
His father, William Spencer, was a music teacher.
William Spencer (c. 1751 - c. 1816) was an English mathematical instrument maker of the 18th and 19th centuries.
William Spencer and his partners manufactured navigational instruments for both domestic and international markets.
William Spencer and Samuel Browning first formed a partnership between 1778 and 1781.
William Spencer, died about 1816.
Their son, William Spencer, weighing 7 pounds, 1 1/2 ounces, was born on Friday.