Wavy Gravy was one of the first radical clowns within the hippie movement. His performance career started in standup comedy and the more radical comedian Lenny Bruce was Wavy’s manager. Wavy’s real or birth name was Hugh Romney. His one comedy album is as Hugh Romney that album is on youtube.
Hugh’s family moved to Princeton, New Jersey when Albert Einstein had himself just moved there. For a short period of perhaps a few weeks, Einstein would take Hugh on his morning walks.
Here Wavy tells the story, starts at 10:50:
Here is information about Wavy Gravy / Hugh Romney and this leads to information about his organisation Camp Winarainbow that still exists. https://en.m.wikipedia.org/wiki/Wavy_Gravy