A mathematical career that spanned the transition from wartime research to the birth of the commercial computing age, Mary Lee Woods distinguished herself through rigorous software development. Her early contributions included complex machine code programming for the Ferranti Mark 1, a role that required deep technical mastery of limited storage, binary arithmetic, and the challenging diagnostic processes of mid-century mainframe engineering.
Early Mathematical Training
Born in 1924 in Birmingham, Woods attended Yardley Grammar School before pursuing a wartime compressed degree at the University of Birmingham between 1942 and 1944. She gained initial technical experience at the Telecommunications Research Establishment in Malvern. After completing her studies, she accepted a fellowship at the Mount Stromlo Observatory in Canberra, Australia, where she worked from 1947 until 1951.
Twenty questions, eight minutes on the clock, and a percentile measured against everyone who has taken it. No sign-up.
Take the IQ test →Engineering at Ferranti
In 1951, Woods joined Ferranti in Manchester, working in a group led by John Makepeace Bennett. Her primary focus involved programming the Ferranti Mark 1 and Mark 1 Star, systems characterized by two-level storage and reliance on serial 40-bit arithmetic. She developed the 'Stopandprint' routine to facilitate error diagnosis away from the control desk and collaborated on interpretive subroutines. During this tenure, she successfully campaigned for equal pay and rights for women within her department.
Cottage Industry Programming
Following the birth of her first child in 1955, Woods transitioned to what she described as cottage industry programming. Operating from home, she created simulations for the London Transport Executive to address bus bunching and developed tracking software for weather balloons used by the RAF at Boscombe Down. She returned to full-time work in 1963 at K and H, authoring programming manuals until her final retirement in 1987.
Family and Later Life
Woods married Conway Berners-Lee on 10 July 1954 at St Saviour's Church, Hampstead, having met him while working at Ferranti. The couple had four children: Timothy, Peter, Helen, and Michael. In later years, she worked as a mathematics teacher and continued to engage with computing through languages such as BASIC and Fortran. She died on 29 November 2017 at the age of 93.
Fast facts
- Born: 1924, Birmingham
- Died: 2017, London
- Education: University of Birmingham, Yardleys School
- Notable Employers: Ferranti, Mount Stromlo Observatory, Telecommunications Research Establishment
- Career Period: 1942-1987
- Marriage: 10 July 1954, Conway Berners-Lee
Questions readers ask
What specific software diagnostic tool did Woods create?
She created a routine named 'Stopandprint' that allowed programmers to monitor data in the accumulator and specific store lines without interfering with the program's execution.
Did she hold any roles beyond computer programming?
Yes, she worked as a schoolteacher of mathematics and wrote programming manuals for the company K and H.
Achievements
- Affiliated with Telecommunications Research Establishment, Mount Stromlo Observatory and Ferranti
- Educated at University of Birmingham and Yardleys School
- Worked as mathematician, computer scientist and programmer
.jpg)