He was himself a merchant and was president of the Manchester Chamber of Commerce from 1839 to 1841.
In 1917 he became President of the Manchester Chamber of Commerce.
He was a magistrate for the City of Manchester and a director of the Manchester Chamber of Commerce.
He entered business as a calico printer, and was a director the Manchester Chamber of Commerce.
The association, of which he was president, was a protectionist body that broke away from the pro-free trade Manchester Chamber of Commerce.
He was an export and import merchant, and President of the Manchester Chamber of Commerce in 1905.
In 1820, Brotherton, Shuttleworth and Thomas Potter founded the Manchester Chamber of Commerce.
He was a manufacturer at Manchester and in 1878 he was elected president of Manchester Chamber of Commerce.
He was active in the family business and with the Manchester Chamber of Commerce.
Slagg followed his father into business, and became president of the Manchester Chamber of Commerce.