Geraldean Lynn was born January 7, 1926, in Winner, South
Dakota. She was the middle one of three sisters. When she was six years old,
her parents escaping the grasshoppers and the dust bowl, moved the family to
Deerfield in the western Black Hills. She attended a small country school there
through the ninth grade. She joined her older sister in Rapid City where both
attended the high school, following their family tradition of finishing high
school. They lived in rented rooms and worked to earn their “keep.” Given the
transportation issues and the late depression economy, they probably only
visited home in Deerfield a few times other than Christmas during the school
year. After her older sister had graduated high school, her younger sister
joined her to continue the family attendance. Geraldean graduated in 1943.
She obtained an appointment as a teacher in one of the rural
schools. This was the height of World War II with many shortages including teachers;
rural school boards would hire promising high school graduates as teachers. Readers
of the Laura Ingalls Wilder books will recall that Laura went from high school
graduation to a teaching role without further schooling.
In 1944, Geraldean enrolled in South Dakota Mines and began
her college education. She graduated in 1948 with a BS in Physics. She joined
the General Electric works in Hanford, Washington, working on nuclear reactor
design and testing. She met there, and in 1952, married Gordon Fluke who was a
World War II veteran and Chemical Engineer by way of Oregon State University. In
1953, the Flukes joined Boeing Airplane Company in Seattle where Geraldean
conducted analyses and experiments on aerodynamic heating. In 1955 they moved
to Ann Arbor, Michigan, for Gordon’s career and there Geraldean began graduate
studies in Nuclear Physics.
In 1957, she and Gordon joined Aerojet General in Sacramento,
California, Geraldean performed analyses on various aspects of rocketry in the
pioneering Polaris program. She also participated in firing tests and
evaluations of those test results. Her work at Aerojet General was on
classified projects, so she did not have an opportunity to build a publication
record. This was also the situation at both General Electric and Boeing. In
1968, the Flukes moved to Southern California where she accepted a position
with the U.S. Air Force Rocket Propulsion Lab at Edwards Air Force Base.
In 1970, she and Gordon decided that they wanted their two
children to have the experience of growing up in a less frenetic environment
than California. One more like she had experienced in rural South Dakota. They
moved to the Black Hills. Geraldean was offered a position at Edgemont High
School teaching mathematics and physics. For the next dozen years, she gave her
students a solid foundation in these subjects. Many of her students went on to
college in various STEM fields as well as law and education. Quite a few
matriculated at South Dakota Mines including her son Douglas Fluke, who
finished a degree in Chemical Engineering in 1982.
Along the way, while teaching at Edgemont High, Geraldean
sat for the professional engineering examination and was licensed in 1973,
nineteen days after her 47th birthday.
In 1982, the Flukes rejoined Aerojet General in Sacramento. She
began working on a new generation of solid propellant rockets performing
analysis and testing. This again involved many visits to the testing facilities
in Southern California. In 1992, she and Gordon officially retired moving to
Missoula, Montana. Her retirement was interrupted a year later when she took a
temporary assignment in Rapid City as Technical Coordinator for ECO-Chem
Network, an endeavor started by her son. As she was in Rapid City, she decided
to enroll in a Ph.D. program in Atmospheric, Environmental and Water Resources
(AEWR) at South Dakota Mines. Four years later in 1997, she received the first
doctorate in this program. Following
this, she accepted a faculty position teaching mathematics and physics at
Aaniih Nakoda College on the Fort Belknap Reservation in Montana. Geraldean
taught there for several years; then returning to Missoula, she officially and
finally retired from her various works. Of her adult life, she spent ten years
as a student, thirty years as an engineer and nearly twenty years as a teacher.
She was awarded South Dakota Mines’ Guy March Silver Medal
for Professional Accomplishments in 1999, She was inducted into the South
Dakota Hall of Fame in 2010.
One has the impression that Geraldean was always engaged in
some activities over and above the official ones. After a four-year gap, she
completed her master’s degree work at the University of Michigan in 1962 while
taking a short leave from her work at Aerojet General. She participated (hands
on) in building their house in Seattle as well as a vacation cabin in Squaw
Valley. She invested in additional “fixer-up” properties, again hands on in the
fixer-up phase. She and Gordan continuously added improvements to their ranch
in the Black Hills. Geraldean received an award from the U.S. Forest Service in
2016 recognizing the Reclamation and Conservation accomplishments on this
ranch. She was a dedicated and accomplished fisher of trout from childhood. She
was also known as a superb cook. She took up chess as a hobby after settling in
Missoula and became proficient. The only thing she could not do well was to
stay retired.
After a full life, well lived, she died in 2019 at the age
of 93.
Article by Donn Lobdell, Mines 1958 graduate of Mechanical
Engineering who writes the High Impact Hardrocker Series