Further afield, John's nephew, Sir Samuel Alexander Sadler (1842–1911), achieved renown in the town of Middlesbrough in the North East of England.
Having reached the age of 21, he took over the Brick Manufacturing business established by his father, a pioneer of the industry in Oldbury, and came to found his own firm - eventually registered as John Sadler & Sons of Shidas Lane, Oldbury ("manufacturer of every description of Staffordshire brindled, red, blue and brown bricks and tiles"[2]), established in 1847/1849 and converted into a Private Limited Company in 1900.
The marl hole on the site used for the extraction of clay eventually grew to such a size as to swallow Sadler's former place of residence.
Sadler was a strong supporter of the Liberal Party and held Prime Minister William Ewart Gladstone in the highest regard.
He contributed to the cost of erecting the new Methodist Chapel at Round's Green and a stained glass window dedicated to his posterity was installed there following his death.