Elizabeth Lachlan (née Appleton; 1790 – 8 September 1849) was a British writer and education advocate.
In 1815, she wrote her first book on education, drawing on the ideas of Sarah Trimmer, building a strong reputation.
Believing his son, Appleton's eldest brother, to be a musical prodigy, he moved the family to London and found himself work at the Kidbrook Park estate.
Her books gave practical systems to help those who wanted to follow this style of education, with methodologies for different age groups and abilities, and recommended reading texts to help.
[1] In 1822, Appleton set up a school for young ladies in Portland Place, London,[4] and by 1825 she was earning £4,000 per year (equivalent to £414,725 in 2023) from it.