Board Members


Mary Golden – Founder and Director

Mary Golden is our founding director. She has served for the past 10 years. Mary has an extensive background in educating youth in STEAM. Professionally, she is a science editor and writing instructor with an academic background in organizational development and public policy. She has founded and directed several educational and arts programs since the 1970s.

Mary is a certified ESL teacher and has been a member of several science and education organizations. After co-founding a communicating science program at NCAR, she volunteered in 2005 as a science mentor in her granddaughter’s kindergarten class and recruited other mentors to lead hands-on projects.

In 2008, the girls asked her to help them form a club and Cool Girls was born. She was also instrumental in establishing the Colorado chapter of the National Girls Collaborative Project, which is now the Colorado Collaborative for Girls in STEM led now by CU. She has an extensive network within the Boulder Community which ensures that Cool Girls learn from real experts and pioneers in the e-STEAM community.


Marianne Gatten – Board Chair, Finance Committee Chair

Marianne joined the board in 2016 with the desire to do her part in increasing the number of women pursuing successful careers in STEM. In guiding her daughter’s education, she realized that even today girls still face some of the same obstacles she dealt with decades ago and enrolled her in Cool Girls.

Marianne is a career woman and the mother of two. She has an Industrial Engineering degree from the University of Pittsburgh and a Master’s in Business Administration from the University of Virginia’s Darden School. Gleaning what she learned from a quarter-century of leadership in technology-driven Fortune 500 companies, Marianne is now the Principal Consultant at MKG Consulting LLC.

In her leisure time, she may be found on a hiking trail around Boulder or on the ski slopes of Winter Park with her family. She is committed to making a positive impact through her service with Cool Girls.


David Osterman – Curriculum Committee Chair

David Osterman works at Ball Aerospace in Boulder where he helps develop instruments for observations from space. In childhood David’s interest in science was encouraged by his mother’s love of nature and father’s help in math homework. This led to memorable experiences catching butterflies, growing crystals, peering at stars through a telescope and marveling at the creatures in lake-water drops under a microscope.

David received a doctorate in physics from Columbia University. Since then his career path has traversed the landscape of STEM careers, from Science to Technology to Engineering (but not yet Math). After working in physics research at Brookhaven National Laboratory he moved on to technology commercialization for a high- tech start-up company. Now David is a Systems Engineer at Ball Aerospace where he is part of a team developing a temperature mapping instrument for Jupiter’s fascinating moon Europa, the subject of a future NASA mission.

Cool Girls is important to David for several reasons. On a personal level he wants his children, including his daughters, to have the opportunity to engage with STEM and STEAM subjects as he could as a child, with experiences that inspire wonder and appreciation of the natural world. He would also like his daughters to be free to pursue whatever interests them without being discouraged by stereotypes about girls. In a time when science is under pressure to bend to political forces he would he would like to contribute to the strengthening of free inquiry. Working with girls on STEAM activities is one way to do that.
David has lived in Boulder since 2002. He has one daughter in college, and a daughter and son at Crestview Elementary school. In his slivers of free time he likes to run and work on transforming part of his yard into a native grass prairie.


Egbe Osamwonyi – Treasurer

Egbe Osamwonyi is the Treasurer of Cool Girls and has been an active Board Member since 2010.  She first started volunteering with Cool Girls when her daughter became a founding member of the club in 2008.  Along with her skill for numbers, Egbe also shares her passion for software and diversity in STEM.  Having emigrated to the US and obtaining an Electrical Engineering degree from the University of Iowa, she has firsthand experience with the power of a STEM career in achieving the American Dream.  Egbe is a Senior Software Engineer for IHS Markit, ensuring their customers always have the global financial data they need.  Outside of work and volunteering, Egbe is very involved with her family attending Boulder High orchestra concerts and her daughter’s water polo matches.


Michael Uhl – Board Member

Michael Uhl joined the Board of Directors in 2018. He has a passion for volunteering in the community and seeing that children and adults have access to the services they want and need. His interest in STEM goes back to his teen years and his choice of pursuing an undergraduate degree in Mathematics and Computer Science from Ohio State University. Mike went on to attain a Law Degree from Elisabeth Haub School of Law – Pace University and was admitted to the bar in New York, Connecticut and California. He retired from IBM in 2016 after spending 40 years in a variety of sales and marketing roles. In his last position at IBM he was the VP of Global Infor Alliance. Currently, Mike is volunteering a couple days a week for Boulder County Legal Services, providing assistance with a broad range of legal issues. In his free time, Mike can be found cycling around the mountains of Colorado or enjoying a great meal at one of the fine restaurants around Boulder with friends and family.


Dr. Oakleigh Thorne, II – Advisory Board Member

Dr. Oakleigh Thorne is a long-time resident and environmental steward of Boulder, Colorado. His love of the outdoors and nature started early with exploring the fields and woods around his family home in New York and at summer camp in Wyoming. Oak has nurtured this passion throughout his career. He has a Master’s in Conservation from Yale and a PhD in Biology from the University of Colorado. He founded the nationally recognized Thorne Nature Experience, where he and its staff have have taught Boulder and Denver children about the environment through hands-on projects for more than 60 years. He is also a leader in protecting Boulder’s Open Space, including Settler’s Park and Enchanted Mesa. We are honored to have Oak contributing his expertise in developing thriving nonprofits and inquiry-based educational programs for children to Cool Girls Science and Art Club.


Laura Lauda – Website Development

Laura is a technology expert who specializes in the Microsoft stack. Starting her technical career in the late 90’s, Laura has developed software programs ranging from corporate websites and web applications, to e-commerce applications and marketing applications, and worked in multi-touch technology when it was in its infancy. Working for companies such as Crispin, Porter and Bogusky, Laura honed her skills in technical direction and leading development teams on multi-million dollar advertising projects for their client Microsoft. She then moved into technical direction for two local Boulder companies and most recently Laura has started her own consulting company, Aeonian Consulting, where she architects and develops code for clients, offers solutions architecture, and technical executive expertise. In her free time, she enjoys writing sci-fi and fantasy novels, reading, hiking, road trips and traveling, and playing her bass guitar.