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On 12 June 1950, Doris started work at the Chemical Research Laboratory (CRL) in Teddington in the Microchemistry Department. The CRL became the National Chemical Laboratory (NCL) in 1958 which was then absorbed by the National Physical Laboratory (NPL) in 1965.

Following the closure of the Microanalytical unit at the NPL in 1974, Doris founded The Butterworth Microanalytical Consultancy Ltd on 25 September and set up shop in Teddington High Street.

The laboratory was a success and a diversification in the range of tests performed prompted a change in name to Butterworth Laboratories Ltd in January 1977. The company eventually outgrew the premises in the High Street and was relocated in 1982 to the current site on Waldegrave Road in Teddington.

Ken joined Doris on the Board in 1979 and in 1984 became Chairman. He and Doris grew the company further resulting in the purchase of the freehold of the entire site at 54-56 Waldegrave Road in 1995.

Sadly, Ken passed away in August 2006, but Doris put all of her energies into her work. Not only did the laboratories survive the financial crisis in 2008 but they continued to grow to a company that today employs over 80 scientists and administration staff.

Doris became a member of the Society for Analytical Chemistry (SAC) in 1950 and went on to become a prominent member holding the positions of Vice Chair of the Micro & Chemical Methods Group between 1957 and 1959 and then Hon. Secretary of the Microchemistry Group between 1963 and 1971.

From 1972 to 1974 she represented the News Publications Committee through the society’s transition to the Analytical Division of the newly formed Chemical Society. Doris also became a member of the Royal Institute of Chemistry (RIC) in 1963 and then, in 1986, a fellow of the ÂÜÀòÉç after its formation in 1980. In 2011, she was presented with a long service award by the RSC in recognition of her 60 years of service to the SAC, RIC and RSC.

Doris stepped back from the front-line management of the laboratories in 2017 with the appointment of a new Managing Director. However, she remained as Chair of the Board and, with her tireless work ethic and enthusiasm never waning, remained active in the running of the company right up until her death.

During her 43 years as Managing Director, she took an active interest in all her staff, also performing the role of HR Manager, creating a company culture that endures to this day. Her lab was, without a doubt, her life, her soul and her reason for being. Right up to the end, the first thing she would ask was how the lab was getting on.

Doris will be fondly remembered and highly respected by all employees, past and present. She was a pioneer who started and ran her own scientific company at a time when being both a prominent woman in science and a businesswoman was not without its challenges. Her legacy continues in Butterworth Laboratories Ltd with her sole shareholding being passed to a trust with the employees as beneficiaries.