By Linda Harris Sittig
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I, along with thousands of other drivers, should be eternally grateful for Gladys Brown West.
Why? Has GPS ever helped you find your way to a destination? If you answered yes, even once, you need to thank Gladys Brown West.
Born and raised in rural Dinwiddie County, south of Richmond, Virginia, Gladys was born just as the Great Depression began and solidly in the era of Jim Crow segregation.
Her family ran a small farm in a mixed community of sharecroppers, and Gladys grew up working there. In addition to the farm, her mother often worked in a nearby tobacco factory, and her father worked on the railroad.
As one of four children, Gladys concluded at an early age that only an education would provide her with a way to escape the drudgery of the farm for a better way of life.
She studied hard and graduated as the Valedictorian of her high school in 1948, thereby earning a full scholarship to attend Virginia State College (now University), traditionally an HBCU (historically Black college or university). Free to pursue any major, she chose mathematics, even though it was mostly a male domain. Numbers fascinated her.
She taught high school math and science for a few years, returned to Virginia State for a Master’s Degree in Mathematics, and then got hired by the U.S. Navy as a computer programmer at the Naval Proving Ground in Dahlgren, Virginia. This proved to be a fortuitous move because it launched her lifelong career as a pioneering mathematician and led her to meet her future husband, Ira West.
While at Dahlgren, Gladys began studying orbital trajectories, which led her to conclude that the Earth was not a perfect circle but bulged slightly at the Equator. As she perfected her studies, she was able to create mathematical models of the Earth’s correct shape accurately.
She then went on to use complex algorithms to account for the differences in the gravitational pull of tides and other forces on the Earth.
Eventually, Gladys’ work and subsequent updates shaped the future of GPS as we know it today. First designed for military use, GPS has become a household tool, or should I say a navigational tool.
It is interesting to note that Gladys Brown West’s achievements were not well known due to the highly classified nature of her military research. While other Black women became famous as ‘Hidden Figures’ in math and science, Gladys worked behind the scenes, helping improve the realism of the Earth geoid model. And it was this Earth geoid model that helped the Navy improve the accuracy of their satellite mapping positions. Which, in turn, enhanced GPS.
Gladys passed just a few months ago, at the age of 96, and to her credit, she has been included in the Space and Missile Pioneers Hall of Fame, and was the first woman to win the Prince Philip Medal, given by Britain’s Royal Academy of Engineering, for her work on the GPS satellite orbit.
And, may I say, that throughout her illustrious working career, she also raised three children and earned a Ph.D. AT THE AGE OF 70!
If you are interested in learning more about Gladys in her own words, look for her memoir: It Began with a Dream. Available online and in traditional bookstores.
By the way, GPS stands for Global Positioning System.
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I usually thank blog followers who send me ideas for women to research, but this month the idea came to me in my car while I was looking for directions to a new place. My exact thought was…Hmm, I wonder who created GPS, which gives much-needed directions when we are searching for an address. Hmm, I wonder if that was a woman?
And voila, I discovered Gladys!
Here are my books whose characters are based on strong, relatively unknown women in history. You can read about them in depth on my website: www.lindasittig.com.
Cut From Strong Cloth – Civil War era
Last Curtain Call – coal mining wars of the 1890s
Counting Crows – the Spanish Flu Pandemic of 1918
B- 52 DOWN – the Cold War of bombers carrying nuclear bombs
Opening Closed Doors – the desegregation of US libraries starting in the 1950s
Chasing the Tides (forthcoming)
~ linda😊







