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This picture was likely taken at the family's home in Los Angeles, California. From left to right are:
Libbie Anne (Krichesky) Patterson ["Anne"]
Winifred Alice (Rothwell) Krichesky ["Alice"]
Louis Easton Krichesky ["Lou"]
Alice & Boris both obtained degrees in science at Reed College in Portland, Oregon, where they first met. Boris taught Zoology at UCLA until his death in 1949. After Boris's death Alice became a UCLA research assistant first on an unsuccessful cancer blood test, then on glaucoma research, then on brain tumor research.