Her parents were Elizabeth (born Dingley) and George Thomas Frederick Bousfield and she was born in 1814. Her father was a solicitor and she came to notice after she moved to the Hebridean isle of Lewis and Harris with her husband, Frederick William Leopold Thomas, who was Captain in the Royal Navy. They had married on 2 December 1841 at St Paul's, Deptford.[1]
She was surprised to see how poor the people were on the island and decided to help them. She had been given a pair of excellent hand knitted socks[2] and in 1859 she went to Edinburgh where she created an agency for the sale of these socks and stockings.[1]
She worked with the landowner Catherine Murray, Countess of Dunmore to create the business of weaving Harris Tweed.[1] The Countess had inherited 150,000 acres (610 km2) of the Dunmore estate on the "island" of Harris in 1845 when her husband died.[3]
At the Edinburgh Exhibition of 1886 the socks from Harris won first prize and Harris Tweed won the prize for their excellence of manufacture. Beckett moved to London in 1888 and the "Scottish Home Industries" which managed the new product, became a limited company in 1896. She was a widow and she married James Flowers Beckett in 1890. He was retired but had been another Royal Navy officer.[1]