Career
He was the first Acadian elected to the Nova Scotia House of Assembly. He represented the town of Annapolis from 1761 to 1765 and Annapolis County from 1765 to 1770 in the Nova Scotia House of Assembly. He was born in Annapolis, Nova Scotia, the son of William Winniett and Acadian Marie-Madeleine Maisonnat.
Winniett was a justice of the peace, a collector of customs and excise duties, a judge of probates and wills and a registrar of deeds.
He traded illegally with the French. In 1762, he was named a justice in the Inferior Court of Common Pleas.