
The Tech Celebrates Black History Month
February 1, 2025
Highlighting African American leaders in STEM

- Related Topics:
- STEM,
- Tech Partners,
- In the Community
Innovators We’re Celebrating this Black History Month
These STEM innovators have made the world a smarter, safer, and more inclusive place. Learn how, and then try these free activities and lessons to inspire the next generation of problem-solvers.

Dr. Marian Croak, Ph.D
Dr. Marian Croak is a pioneering engineer recognized for her groundbreaking work in voice over IP (VoIP) technology. She made notable contributions to the development of voice calling over the internet which revolutionized telecommunications. Dr. Croak holds over 200 patents and has been instrumental in creating technologies that are integral to modern communication systems, including the widespread use of services like Skype and other VoIP applications. She is also focusing on the ethical development of AI.

Maynard Holliday
Maynard Holliday is a Stanford University graduate and became known for his work in aerospace engineering and technology development. He contributed to various military and commercial aviation projects, particularly in propulsion systems and avionics. Holliday’s innovative approaches helped improve flight safety and efficiency. He was also recognized for his leadership in advancing engineering practices and mentoring future generations of engineers, leaving a lasting impact on the aerospace industry.

Katherine Johnson
Katherine Johnson was a pioneering mathematician whose calculations were crucial for the first American space flights. She calculated trajectories, launch windows, and emergency return paths for flights like John Glenn’s orbital mission in 1962. Her work helped ensure the safety and success of countless space endeavors. Johnson’s contributions broke racial and gender barriers, and she received numerous awards, including the Presidential Medal of Freedom in 2015.

Roy L. Clay Sr
Roy L. Clay was a pioneering engineer and computer scientist. He became the first African American engineer at Hewlett-Packard, contributing significantly to the development of the company’s test equipment division. Clay was instrumental in shaping the tech industry, mentoring minority engineers, and advocating for diversity in STEM. He was deeply involved in community and educational outreach, and also became the first African American council member in Palo Alto in 1973.
At The Tech Interactive, we are honored to celebrate the work of these four STEM innovators. Help inspire the next generation of problem solvers and take action this Black History Month:
- Be an active ally and take steps to advance your commitments to racial justice
- Read books by Black authors
- Watch movies and documentaries about Black history
- Learn about Black artists and creators who have contributed to popular culture
- Support Black-owned businesses
- Donate to Black organizations