J. Frederick Grassle: key obituary facts
Is J. Frederick Grassle dead? Yes. J. Frederick Grassle died on July 15, 2018, at age 78.
Cause of death: J. Frederick Grassle's cause of death has not been publicly confirmed.
What was J. Frederick Grassle known for?
He was known as American marine biologist.
American marine biologist
Died on Sunday July 15th 2018