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Employee Updates

We say “Bon Voyage” to two of our DFC associates

photo of Mary

Mary Schaffer

Mary Schaffer 

After 30 years of government service Mary retired January 3. We wish her well as she enters into another phase of life exploring other interests she loves.

photo of Lance

Lance Thompson

Lance Thompson

Lance retired from GSA in December of last year.. He worked for GSA for 24 years as an Assistant Property Manager managing multiple buildings including 67, 85, 85A and 810.


Welcome Christopher Alden

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Christopher Alden

Christopher Alden

Meet GSA’s new Industrial Hygienist Christopher N. Alden who is originally from Harrison, OH. He’ll be responsible for Performing Health Risk Assessment for both the DFC and the Rocky Mountain Region.

He earned his Associate of Science degrees from the Community College of the Air Force in Bioenvironmental Engineering Technology and Human Resource Management, as well as a Bachelor of Applied Science from Campbell University. He spent the last 24 years working as an Environmental, Occupational Safety and Health, Radiation Safety, and CBRN Response technician, manager, and trainer for the United States Air Force. He had assignments in Japan, Utah, Turkey, Saudi Arabia, California, Italy, Montana, North Carolina, Iraq, Germany, and Afghanistan during his military career. He recently retired from the United States Air Force at the rank of Master Sergeant. He is married and has two children who accompanied him to take up his new role here at GSA


Sally Mayberry
(303) 236-2583

Denver Federal Center, DFC, building managers, property managers, managers