A record of work, profit, and coercion
Labor, Production, Trade, Profit, and Treatment at Mackinnon's Estate
Evidence specific to Mackinnon's Estate
Mackinnon's Estate was a slave-worked sugar estate in St John's Parish, Antigua. The clearest estate-specific figures are from the late slavery period: in eighteen twenty-nine, “Messrs. McKinnon” are listed with eight hundred and thirty acres and two hundred and seventy-one enslaved people. Antigua Sugar Mills also records that, after abolition, the estate received three thousand nine hundred forty-two pounds, two shillings, and one penny in compensation for two hundred and seventy-eight enslaved workers. The same source states that current research has little individual information about the enslaved people from this plantation.
The compensation figure gives one concrete measure of the monetary value assigned to enslaved people by the British compensation system. Divided across two hundred and seventy-eight people, the estate award averages roughly fourteen pounds, three shillings, and seven pence per person, though actual valuations would not have been equal across age, sex, health, and occupation. The payment went to claimants and awardees connected to the estate, not to the people who had been enslaved. UCL describes the wider compensation system as a twenty-million-pound settlement paid to former slave-owners by British taxpayers after Parliament abolished slavery in the British Caribbean, Mauritius, and the Cape.
One direct piece of testimony connects an enslaved woman to Mackinnon's Estate. Juncho, described as an elderly Black Antiguan woman formerly enslaved on MacKinnon's Estate in St John's Parish, recalled that when she was young she had to work hard, dig cane holes, weed cane, pick grass, and do every kind of field task. She also described being unable to care for a sick child because she had to work in the fields, and she recalled a child being tied to a tree and violently whipped for breaking plantation rules.
Work on the estate
The work at Mackinnon's Estate would have centered on sugar cane cultivation and processing. The estate's size and workforce place it within Antigua's large plantation economy, where sugar estates combined agriculture and industrial processing on the same property. A sugar plantation was not only a farm; it was also a factory where enslaved people planted, weeded, cut, carted, crushed, boiled, cured, barreled, and shipped sugar products.
Field labor included cane-hole digging, planting, manuring, weeding, cutting cane, carrying cane, collecting grass, and maintaining provision or animal-support work. Juncho's testimony specifically names cane-hole digging, weeding cane, and grass-picking as part of the labor she performed while enslaved on Mackinnon's Estate.
Cane-hole digging was one of the hardest forms of plantation labor. In the wider Antiguan sugar system, first-gang workers dug square cane holes with hoes, not spades. The Glasgow Saint Lauretia Project describes enslaved first-gang workers as expected to dig dozens of holes a day, moving large quantities of soil by hand. William Clark's eighteen twenty-three Antigua prints also show first-gang enslaved men and women using long-handled hoes while a Black driver supervised the work.
The plantation labor force was normally divided into gangs. Young and stronger adults worked in the first gang, which handled the heaviest work. The second gang did hard but less intense labor. Older people and children were often placed in the third or “grass” gang, doing tasks such as weeding, gathering grass for animals, and other support work.
Crop-time labor and factory work
During crop time, the work intensified because cut cane had to be processed quickly before the juice spoiled. On large sugar plantations, mills and boiling houses could operate day and night during the harvest season. The Saint Lauretia Project describes twelve-hour day and night shifts during the boiling season on large plantations.
The factory side of plantation work included feeding cane into rollers, collecting juice, boiling cane juice in copper vessels, skimming, judging the boil, transferring syrup through successive coppers, curing sugar, draining molasses, and preparing barrels. This was skilled and dangerous labor. Enslaved boilers had technical knowledge, but they worked inside hot, hazardous boiling houses under coercion.
Milling was also dangerous. Cane was fed between rollers to crush out juice. The Glasgow source describes injuries where exhausted workers could be pulled into the rollers, with arms crushed and amputated. This is general sugar plantation evidence, not a Mackinnon-specific injury record, but it describes the machinery and risk profile of the kind of sugar economy Mackinnon's belonged to.
Products
The main product was sugar, especially muscovado or raw brown sugar. Molasses was a by-product of curing sugar. Rum could be made from molasses and other liquids left from sugar processing, but no public source has been found proving that Mackinnon's Estate itself operated a distillery during slavery. The safest wording is that Mackinnon's was part of Antigua's sugar economy, where sugar was the main export product and molasses and rum were common related products on estates with the equipment to process them.
In the wider Antigua sugar system, cane juice was boiled down into sugar, the sugar was cured, molasses drained away, and the finished muscovado was packed into hogsheads for export. Further refining normally happened in Europe or North America.
Trade and shipping
Antigua's sugar was produced for export. Royal Museums Greenwich describes William Clark's Antigua print cycle as showing the production of sugar from planting to harvest, from processing to shipping. After cane was processed into raw sugar, it was packed into hogsheads and shipped to Britain for refining and sale.
Shipping required heavy manual labor. Clark's “Shipping Sugar, Willoughby Bay” shows enslaved workers rolling hogsheads of sugar brought by ox carts to the shore, then loading them onto lighters for transport to ocean-going vessels.
The export system used hogsheads, large barrels that could weigh hundreds of pounds when full. Sugar products could include muscovado, molasses, and rum. Muscovado fed refining markets in Europe and North America, molasses could be exported for rum production elsewhere, and rum was profitable for estates with distilling capacity.
Antigua's production economy
Antigua's economy became deeply sugar-dependent. Historical analysis by Lowes records that sugar production rose from about twelve thousand hogsheads in seventeen twenty-four to an average of twenty thousand to thirty thousand hogsheads in the seventeen seventies. During the peak period from seventeen thirty to seventeen seventy, the median Antiguan estate size was between six hundred and six hundred ninety-nine acres, with many families holding more than three hundred acres and some holding more than one thousand acres.
By the late eighteenth century, Antigua's planters faced declining sugar prices, increased competition from other sugar colonies, higher production costs, soil exhaustion, and water shortage. Lowes identifies drought as a constant problem and says production swung unpredictably from year to year. This matters for Mackinnon's Estate because Mackinnon's was part of that same Antiguan sugar economy, but it does not provide a Mackinnon-specific annual crop total.
Profit and wealth
No public account book has yet been found here showing Mackinnon's annual sugar output, annual expenses, or net profits during slavery. The evidence currently available gives land area, enslaved workforce size, ownership chronology, compensation, and later land history, but not yearly crop accounts for the estate. Antigua Sugar Mills explicitly notes that little information is currently available about the enslaved people from this plantation.
The estate still generated wealth through land, enslaved labor, inheritance, and compensation. William Alexander Mackinnon and his aunt Catherine Call received two thousand three hundred seven pounds, thirteen shillings, and seven pence as their share of compensation for two hundred and seventy-nine enslaved people on the Mackinnon Estate. People Australia also states that William Alexander Mackinnon's father, grandfather, great-grandfather, and great-great-grandfather had all owned estates and enslaved people in Antigua.
The compensation record shows the estate's enslaved workforce being converted into a financial claim after abolition. The enslaved people were not compensated. The claimants and awardees were.
Treatment and coercion
The work system was coercive. Enslaved people did not choose their employer, task load, residence, work hours, or punishment regime. Juncho's account from Mackinnon's Estate describes forced field labor, lack of control over family care, and punishment inflicted on a child.
Antigua's slave laws allowed extreme violence. Antigua and the Antiguans records that an enslaved person who struck and injured a white person could be mutilated or put to death, and that runaways could face death, amputation, or public whipping. It also records restrictions on gathering, trading, carrying weapons, and movement.
Public punishment was part of the island's built environment. Troubling Freedom records that St John's had a cage, pillory, stocks, whipping post, and ducking stool, and that enslaved people accused of serious offenses could be subjected to public torture or execution.
Even legal “protections” were framed within property logic. Laws regulating clothing, work hours, medical care, whipping limits, pregnancy, and illness still treated enslaved people as owned labor. Antigua and the Antiguans records annual clothing allowances, workday limits with exceptions during crop time, and later restrictions on lashes, but these regulations existed inside a system where forced labor, sale, punishment, and family separation remained legal.
Enslaved people's own market activity
Enslaved people also participated in markets, but under restriction. Antigua and the Antiguans records that Saturday was appointed as the principal market day and that planters agreed to allow enslaved people to visit the capital every week or every other week to sell small goods.
Troubling Freedom describes St John's official market and also an unofficial Sunday market at Otto's Pasture, just south of town, where enslaved and free Black Antiguans sold goods. These markets show that enslaved people created economic activity under slavery, but this was not freedom from the plantation economy. Their market access was regulated, limited, and constantly vulnerable to planter control.