[1] The bank operated from its long-standing premises at 1 Fleet Street, on the western edge of the City of London, near the Temple Bar Memorial and opposite the Royal Courts of Justice.

Child took over most of the assets of Coggs & Dann, a goldsmith banker "at the sign of the Kings Head in the Strand, over against St. Clement Danes Church",[5] after the bank became insolvent in 1710 due to a massive fraud orchestrated by gentleman fraudster Thomas Brerewood, which became known as the Pitkin Affair.

However, when he died in 1782 without any sons to inherit the business, he did not want to leave it to his only daughter, Sarah Anne Child, because he was furious over her elopement with John Fane, 10th Earl of Westmorland, earlier in the year.

Their granddaughter Lady Sarah Sophia Fane married George Child-Villiers, 5th Earl of Jersey, in 1804 and upon her majority in 1806, she became the senior partner.

George Child-Villiers, 8th Earl of Jersey, sold the firm in 1924 to Glyn, Mills, Currie, Holt & Co., which retained it as a separate business.

[9] Despite the branch closure, RBS continues to issue Child & Co. branded debit cards, cheque books and statements (as of August 2023).

Over the course of its 350-year history, Child & Co. attracted an exclusive client base that included the Honourable Societies of Middle Temple and Lincoln's Inn, as well as numerous wealthy families.