The story
The bank was founded as Benjamin Heywood, Sons & Co in Manchester by Benjamin Heywood and his two sons, Benjamin and Nathaniel. Also known as the Manchester Bank, it began trading in May 1788. The Heywoods had moved to Manchester from Liverpool, where the elder Benjamin had worked as a merchant and ship-owner alongside his brother Arthur.
All four Heywoods were involved in the Atlantic slave trade, co-owning slave ships. They were merchants that built their wealth from profits gained in the trade of slaves. Their involvement with the slave trade lasted from 1752 to the parliamentary abolition of slavery in 1807
By 1773 Arthur had already founded a successful bank in Liverpool. The elder Benjamin and his two sons used £10,000 of family money in bills to Manchester to found their new bank.
On Benjamin's death in 1795, the Manchester firm became known as "Heywood Brothers & Co". In 1814, Nathaniel’s eldest son Benjamin Heywood joined the firm. Nathaniel died in 1815. Two more of Nathaniel’s sons then joined the firm; Thomas in 1818 and Richard in 1820. Benjamin Arthur Heywood, the last of the original founders, died in 1828 and in 1829 both Thomas and Richard retired from banking, leaving their brother Benjamin as the sole partner. He renamed the Bank "Benjamin Heywood & Co."
Benjamin was created the First Baronet of Claremont in 1838 and he re-titled the bank ‘Sir Benjamin Heywood Bart. & Co’. He later brought his four sons into the firm when they came of age: Oliver, Arthur, Edward and Charles. Benjamin retired in 1860, leaving his sons to run the firm, which they renamed ‘Heywood Brothers & Co’.
From Wikipedia’s article on Heywood's Bank, shared under CC BY-SA 4.0.3