Volatile and fiery in person, Roxon was the New York correspondent for Australia's most important daily, the Sydney Morning Herald, a regular columnist for the New York Daily News, the author of the ground-breaking Rock Encyclopedia, about ten years older than the rest of us, beloved, hilarious and occasionally exasperating. She would become, publicly and privately, Linda's most outspoken detractor by the time of her death in 1973. In 1968, Linda and Lillian were so close that people suspected Something; Roxon boasted of her bisexuality and probably had a bit of a crush on Linda, but she was in fact Mother Confessor and there was absolutely nothing physical between the two women. Lillian knew more about Linda's romantic escapades than any other single person, and probably more than all of Linda's friends put together; Linda told her everything, and Lillian repeated some of it, only some, to others in our little crowd when it suited her to do so. Lillian and Linda broke each other's hearts - but we're not yet there.
Danny Fields, Linda McCartney: The Biography (2000)