The JFK Library Foundation announced Ms Schlossberg’s death in a statement today.
“Our beautiful Tatiana passed away this morning. She will always be in our hearts,” the statement reads. The post was signed “George, Edwin and Josephine Moran, Ed, Caroline, Jack, Rose and Rory.”
Ms Schlossberg is survived by her husband, George Moran, their three-year-old son and their one-year-old daughter.
She’s also survived by her parents, Caroline Kennedy and Edwin Schlossberg, her brother Jack Schlossberg, and her sister Rose Schlossberg, who is married to Rory McAuliffe.
The environmental journalist revealed she had been diagnosed with a rare type of acute myeloid leukaemia, a blood cancer, in a New Yorker essay published on November 22, the 62nd anniversary of her grandfather’s assassination.
I had swum a mile in the pool the day before, nine months pregnant
In the essay, Ms Schlossberg recounted her disbelief. “I did not, could not, believe that they were talking about me.
“I had swum a mile in the pool the day before, nine months pregnant. I wasn’t sick. I didn’t feel sick,” she wrote.
Ms Schlossberg was diagnosed shortly after giving birth to her daughter last year, when doctors noticed her white blood cell count was elevated.
Tatiana Schlossberg. Photo: Getty
Today’s News in 90 seconds – 31st December
“Everyone thought it was something to do with the pregnancy or the delivery. After a few hours, my doctors thought it was leukaemia,” she wrote.
In her essay, Ms Schlossberg also criticised her cousin, health and human services secretary Robert F Kennedy Jr.
“I watched from my hospital bed as Bobby, in the face of logic and common sense, was confirmed for the position, despite never having worked in medicine, public health, or the government,” she wrote.
She decried his cuts to research funding, particularly for “mRNA vaccines, technology that could be used against certain cancers”.
Ms Schlossberg’s work focused on the impacts of climate change. She published several stories in The Washington Post, including an investigation into the impacts of climate change on cranberry farmers.
In 2019, Ms Schlossberg also published Inconspicuous Consumption: The Environmental Impact You Don’t Know You Have.