Has been involved in volunteer search dog work since 1972. She was a founding member of the American Rescue Dog Association and the Texas Unit of ARDA. She is a founding member of  Northwest Disaster Search Dogs and King County Search Dogs and a member of Region 10 DMORT task force. She is the past chair of the National Association for Search and Rescue search dog committee. Marcia's search dog experience ranges from disaster search (Wichita Falls TX tornado, KAL  Air Crash  Guam, Bremerton Fire WA) to wilderness, snow, water, and cadaver. She has also trained all her search dogs in trailing. Marcia's dogs have made finds in trailing, wilderness, water, cadaver and disaster searches. She had law enforcement experience as a Mt. Rainier National Park ranger. As a former high school and adult education instructor, Marcia's interests are in teaching and writing. She has taught at NASAR and numerous training schools, seminars and workshops. She is the author of many articles and has produced a video tape.