high level stuff, just laying around. abandoned homes of deadmen with no names.

"Neighbors told KTVU2 that the homeowner who died earlier this year worked for the SLAC National Accelerator Laboratory at Stanford, one of 17 national labs under the U.S. Department of Energy."

https://www.mercurynews.com/2019/05/02/radioactive-material-found-at-san-carlos-home/

"The scientist died earlier this year, according to news accounts. He worked for the Stanford Linear Accelerator Center National Accelerator Laboratory in Menlo Park. The site is one of 17 Department of Energy national laboratories, and is operated by Stanford University, San Carlos Assistant City Manager Tara Peterson told the Sacramento Bee on Friday. Redwood City Fire Chief Stan Maupin identified the materials as cobalt 57 and radium 286, according to the Mercury News, saying firefighters were “100% confident” that the materials were contained to the shed and posed no danger."

https://www.sacbee.com/latest-news/article229995629.html

maybe burton richter?

https://news.stanford.edu/2018/07/19/nobel-prize-winning-physicist-burton-richter-dies-87/

"In 2012, President Barack Obama announced that Burton Richter was a co-recipient of the Enrico Fermi Award, along with Mildred Dresselhaus."

https://en.wikipedia.org/wiki/Burton_Richter