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1759 William was born in Southampton, son of William and Sarah Plenty
1781 Married Jane Haslock in Southampton
1783 William Plenty and his wife Jane had a daughter, Jane, born in Southampton
1786 Birth of son James at South Stoneham, Hampshire but he died the following year
1794 Birth of daughter Elizabeth in South Stoneham
1800 Jane, his wife, died in Southhampton
c.1800 W. Plenty of Newbury made ploughs, including some similar in style to the "Norfolk" plough
1805 Won a prize for ploughs offered by the Earl of Bridgewater at Ashridge
1811 Birth of Son James
1815 Under his patent, William fitted a wheel behind the plough
1818 Birth of son Edward Pellew Plenty
1820 Produced the improved or "Flemish" plough
1824 produced the winning design of lifeboat for the Duke of Northumberland’s prize.
1832 Died in Newbury