The British corporation trafficking enslaved Africans to Guyana after abolition is a shocking revelation that exposes the dark financial networks behind slavery. New evidence from a 1847 letter reveals that Sandbach, Tinne and Company continued to traffic enslaved people illegally, decades after the Slave Trade Act of 1807 and the Slavery Abolition Act of 1833.
The Discovery: A Letter from Demerara
Author Malik Al Nasir uncovered a letter written by Peter Miller Watson, manager of Sandbach Tinne's interests in Demerara, Guyana, to the company's Liverpool office. The letter describes a ship called "the Parker" arriving with a "cargo of negroes," including 115 adult males, 86 adult females, 82 under 14 years, and 41 under 4 years. Watson notes only three casualties during the passage, attributing them to the "wretched state" in which they had lived ashore.
What the Letter Reveals
The use of the term "cargo" is telling. As Malik Al Nasir points out, enslaved people were referred to as cargo, while liberated Africans were not. This indicates that the individuals on the Parker were enslaved, not indentured or freed. The letter also implies that the company was aware of the illegal nature of the trade, as it was written in secret.
The Financial Networks Behind Slavery
Sandbach, Tinne and Company was closely linked to the merchants who received the largest taxpayer-funded compensation payouts after abolition. The new research project, Overwriting-Underwriting, aims to uncover these financial networks and how they perpetuated slavery even after it was outlawed.
Compensation and Complicity
When Britain abolished slavery, plantation owners from powerful families received huge sums in compensation, while the enslaved received nothing. This system allowed corporations like Sandbach Tinne to profit from human suffering and continue their operations illegally.

Data: The Parker's Human Cargo
| Category | Number |
|---|---|
| Adult males | 115 |
| Adult females | 86 |
| Under 14 years | 82 |
| Under 4 years | 41 |
| Casualties | 3 |
Key Takeaways
- Sandbach, Tinne and Company trafficked enslaved Africans to Guyana after abolition.
- The 1847 letter provides direct evidence of this illegal activity.
- Financial compensation to slave owners enabled continued exploitation.
- The Overwriting-Underwriting project aims to expose these networks.
- This history challenges the narrative that abolition ended slavery immediately.
FAQ
FAQ
How did Sandbach Tinne continue trafficking after abolition?
The company used its own fleet to transport enslaved people, as evidenced by the 1847 letter. They referred to them as "cargo" and operated in secret, exploiting loopholes and the lack of enforcement.
What was the Overwriting-Underwriting project?
It is a new research initiative that aims to uncover the financial networks behind enslavement, focusing on how corporations and individuals profited from slavery and continued to do so after abolition.
Why is this discovery significant?
It proves that slavery did not end with the 1833 Act. It shows that powerful corporations circumvented the law, and it highlights the need for accountability and reparations.
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