Here is what I know for sure (from entries in the family bible):
- 1784: William Parkinson married Mary Reading in Essequibo
- 1774: Mary's father, Dr.Reading, died in Essequibo
- 1785: William's and Mary's daughter Jane was born in Demarara
- 1787: Wm.'s and Mary's dau Anna Maria was born in Demarara
- 1792: Wm.'s and Mary's son William was born in Demarara
- 1796: Wm.'s and Mary's dau Elizabeth Green [Parkinson] was born in Demarara; she married Charles Bean (it doesn't say where the marriage took place) and she died 1834 in Essequibo.
- Wm. and Mary's last child, John, was born 1800 in Philadelphia, but his father (William) died in 1803 on Plantation Grove, Eastern Sea Coast of Demerara.
- Mary Reading [Parkinson] died 1853 in Stratford, CT.
Old William Parkinson's parents were John Parkinson (apparently a clergyman of the Church of England, having immigrated to Delaware (perhaps by way of Barbados) from Ireland, and Jane Patterson of New Castle County, DE. William Parkinson was probably born in Delaware about 1748. His father, John Parkinson, died in 1751, and his wife Jane remarried, in 1757, Evan Rice.
Jane's father, (Justice) William Patterson, of New Castle, died in 1794 and, in his will, he mentions his son John, a merchant "in Demerara", and his grandson, William Parkinson "in Demerara".
My guess is that William Parkinson was raised in Delaware by his mother and her new husband; and that Jane's brother, John Patterson, had established himself in Demerara as a merchant, and invited his nephew to join him.
Tikwis, if you have a map showing the various lots, and also explaining what the letter C or K after the figure represents, I'd be really interested in that. Also, I'd love to know more about what kind of plantation they had. I imagine that Dr.Reading was either a churchman, or a medical doctor, and probably had no plantation.
Well, that was a long message, but maybe the details will be helpful.