He was educated at Harrow School and Trinity College, Cambridge[2] with the goal to enter the Church of England.

[3] He is recorded as playing first-class cricket for Cambridge University in two matches in 1820 and 1821, totalling 12 runs with a highest score of 6 and taking 7 wickets.

[3] While travelling through Paris, Marseilles, Nice, Genoa, Florence, Rome and Naples he studied viticulture to learn how to make wine.

[5] With £3,000 his father had advanced him, together with several servants, their goods and chattels, sheep, cattle, horses, pigs and hounds, Wyndham and his wife Margaret set sail on the George from London on 17 August 1827.

[6] He settled near Branxton, where Wyndham purchased the 2000 acres for £1,200, renaming it Dalwood after one of his father's farms at Dinton.

[5] According to his diary he grew crops of maize, wheat, hemp, mustard, castor oil, tobacco, millet and barley.

With his family, a few livestock and stock men, he traveled the New England plateau to the Richmond River went to Keelgryrah.

Wyndham describes planting and tending his crops, weather conditions, the building and maintenance of his property, and relationships with family, workers and the Indigenous people.

[7] Wyndham's legacy is as a significant pioneer of the wine industry in Australia, due to his ability to find the best grapes to suit the local area and conditions.

[7] In England he was seen as radical advocating for religious tolerance, parliamentary reform and abolition of the Corn Laws and tithes.