before 1813 - apprenticed to Benjamin Lepard, wholesale stationer, Covent Garden.

1813 - Augustus joined Henry Mitton and Edward Cowper, in the printing firm of Cornish & Co. at Nelson Square, Southwark.

1817 - the partners proposed a method of printing banknotes to the Bank of England which could not be copied by forgers. Mitton left the partnership in December.

from 1818 - constructed and improved printing machinery, especially for The Times

by 1821 - developed a machine capable of printing six colours in perfect register

By 1826 - ten newspapers were printed on Applegath and Cowper presses.

1826 - Applegath declared bankrupt and his Blackfriars workshops and goods were sold to printer, William Clowes

1827 - four-feeder machine installed for The Times

by 1828 - Applegath working as a silk and calico printer, specializing in silk handkerchiefs, with a factory at Crayford, Kent, and a London office.

1842 - declared bankrupt. The Crayford business was sold to David Evans and Applegath moved into a works in Dartford which had been established by his brother John, where he manufactured printing machinery.

1846 - eight-feeder machine installed for The Times

1847 - nine-feeder machine installed for The Times