Mr Tullberg was working in Calne at the time, at the Harris pork factory. Now the business is run by his son, Guy Tullberg.
“They used to make so many sausages, he wanted to make his own mustard,” Guy says. “He was very interested in food, and this was at a time when the only olive oil available was in Boots, for putting on your feet.”
William used an old coffee grinder to mill the mustard seed, and in his own kitchen. This was 1970 – and later that year, he sold a few jars of mustard to a local pub, the Nag’s Head, and the brand was born.
“My great grandmother was born in Lincolnshire and raised in Holt, in Wiltshire, and she used to say ‘pass the tracklements’ – I think it’s an older English word,” Guy said.
By 1992, the business began exporting its range of mustards, pickles and preserves, and today, they have over 60 products and sell in 24 countries. What has not changed, however, is that everything is still made in small batches, by hand, and using traditional recipes.
And how might Tracklements be affected by Brexit?
"We are as prepared for Brexit as we can be, including holding much bigger stocks than we would usually have at this time of year. Tracklements exports to both Europe and across the world, so we have made sure that all our distributors are aware of the current, uncertain, situation that we face in the UK and have acted accordingly," Guy said.
For more information, visit tracklements.co.uk.