He was also a member of the National Academy of Sciences,[4] and a world-renowned cancer researcher who developed the medication Fluorouracil.

He designed a modest-sized but spectacular contemporary-style house set into the hillside, with concrete block walls facing the street and expansive windows looking out the back.

[3] In 1956 the Heidelbergers added a two-story master bedroom, also designed by Herb Fritz.

[6] In 2017 the house was added to the State and the National Register of Historic Places - "one of Herb Fritz's early masterworks.

"[3] Media related to Dr. Charles and Judith Heidelberger House at Wikimedia Commons