[1] He was born the son of Jacob Ricketts and Hannah Poyntz on the Midgham plantation, Jamaica (named after Midgham, Berkshire, the family seat of the Poyntz).
He succeeded his father in 1756 to the plantation, which was sold to the Woollery family c.1772.
He married in 1774 Sophie Watts, whose sister Amelia was the mother of Robert Jenkinson, 2nd Earl of Liverpool, Prime Minister of Great Britain from 1812 to 1827.
[3] On Lord Liverpool's recommendation he was elevated to Governor of Barbados in 1794, a position he held until his resignation in 1800 because of ill health.
Their son Charles Milner Ricketts was briefly MP for Dartmouth.