Jackie Kennedy and Mahjoun in Morocco

A new book by secret service agent Clint Hill, My Travels with Mrs. Kennedy, describes a night when—while First Lady of the US—Jackie Kennedy apparently took some marijuana edibles, and laughed and danced the night away. 

Jackie had been depressed following the death of her son Patrick, who was born prematurely in August 1963 and died two days later of respiratory distress. She was invited by Aristotle Onassis for a trip on his yacht to recuperate. From there traveled to Morocco where she and her sister Lee Radziwill attended a dinner party with King Hassan's brother. 

Hill writes: 

After dinner, they passed around tea trays of desserts. "What are these?" I asked, as I picked up one of the round confectionary treats off a tray and took a bite. 

"Mahjoun. Moroccan specialty," the server answered. Everyone was laughing and dancing. It had been a long time since I'd seen Mrs. Kennedy really let her guard down like that. Mahjoun, it turned out, was the Moroccan version of hash brownies. 

They had an official Moroccan photographer there, but by the end of the evening I realized there could be some pictures that might not be flattering to Mrs. Kennedy. I explained to the photographer that this was meant to be a purely private visit, and that I would need to take his film so we could preview the photographs. 

First Lady Jackie Kennedy dancing at an October 1963
dinner party in Morocco at which Mahjoun was served.

Apparently one photo made it through, found at www.carlanthonyonline.com.

A second photo of Radziwill, Kennedy and other guests entering the event appears in a People magazine article about Hill's book. It is credited to Lisa McCubbin Hill and apparently is inscribed by Jackie with, "Mr. Hill, Are you happy in your work? JBK."

The First Lady's trip was widely disapproved of within the Kennedy administration, by much of the general public, and in Congress. The First Lady returned to the United States on October 17, 1963. She would later say she regretted being away as long as she was but had been "melancholy after the death of my baby." She soon had another profound reason to be sad, when her husband was assassinated one month later. 

MORE ON THE KENNEDYS AND MARIJUANA
As to persistent rumors that JFK used marijuana for his back pain, all we know is that he may have tried it one night at the White House. John F. Kennedy: A Biography by Michael O'Brien describes briefly an affair JFK had with Mary Pinchot Meyer, the former wife of CIA agent Cord Meyer and sister of Washington Post editor Ben Bradlee's wife Tony. It says, "On the evening of July 16, 1962, according to [Washington Post executive] Jim Truitt, Kennedy and Mary Meyer smoked marijuana together. The White House was hosting a conference on narcotics in two months, and Kennedy joked about it to Mary. Read more. 

John F. Kennedy Jr.'s friend and Grateful Dead lyricist John Perry Barlow told author Christopher Anderson that John had a "Bohemian streak" that included the occasional joint. "John was certainly not a pothead," Barlow said, "but he wanted to lead the life he wanted to lead. That was one of the reasons he held off on starting a political career." Actress Christina Haag, a former girlfriend of Kennedy, writes in 2001 memoir Come to the Edge that while on vacation, the two were offered an "enormous spliff" by some islanders and found “Jamaican hospitality” was “impossible to refuse.” 

A 2009 New Yorker piece on Caroline Kennedy says that she took the rap for her cousin's pot patch in Hyannis Port. According to the book American Legacy:The story of John & Caroline Kennedy by C. David Heymann, "Although David Kennedy had harvested the plants, Caroline, attempting to protect her cousin, took the blame." 

"It's strange," a family pal, the late George Plimpton, reportedly told Heymann. "Jackie didn't like it when John [Jr.] drank or did drugs, but she didn't seem to care if Caroline got smashed on beer or stoned on grass. It was only when Caroline gained a pound or two that Jackie reacted." The 2003 book Sweet Caroline: Last Child of Camelot by Christopher Anderson reports that, "Like her brother, Caroline smoked marijuana on occasion. Unlike him, she never got caught."

Anderson also wrote about JFK and Jackie's dependence on amphetamines (mostly Dexadrine mixed with steroids) supplied by "Dr. Feelgood," Max Jacobson. Jackie reportedly had an injection on the day of her husband's funeral. 

Just before the 50th anniversary of the JFK assassination, Caroline flew to Japan to take up her post as Ambassador to that county. Earlier that year, she served on a jury that acquitted a man for selling crack to an undercover police officer.