Analysis of information sources in references of the Wikipedia article "Elysian Park" in English language version.
Original 1st printing 17&3/8 x 22&3/8" concert/event poster for the 3/26/1967 Easter Sunday Love-In, an all-day happening held at Elysian Park in Los Angeles, CA......... by Gary Grimshaw, image is featured in the Art of Rock book on page 270 (plate 3.53).
It wasn't just self-identified hippies who attended, but bikers, the "straight" ones, the curious ones, singles and families, and self-proclaimed clans ("families" created by choice) flying home-made banners. And, yes, many were high, openly flaunting the laws. at the 1st Elysian Park Love-In on March 26, 1967 in Los Angeles, California
Original 1st printing 17&3/8 x 22&3/8" concert/event poster for the 3/26/1967 Easter Sunday Love-In, an all-day happening held at Elysian Park in Los Angeles, CA......... by Gary Grimshaw, image is featured in the Art of Rock book on page 270 (plate 3.53).