Australian-American astrologer, one of the respected old-timers of the early to mid-20th century. One of the great astrologers of the 20th century, she was self-published, typesetting her own books. Ivy was perhaps best known for her horary astrology, including several books and a correspondence course which she carried on for years and a system for certifying students. Nearly every horary astrologer practicing today draws extensively on her work.
Her family moved to the U.S. when she was five. Her mother and the twins died in June 1903 and the house burned down in August. Living through the San Francisco earthquake and fire, they moved East in 1906.
She married Louis Jacobson on 17 December 1913 in Manhattan, New York, and had one daughter in 1914; they moved to southern California in 1916.
It was 20 years later before Jacobson began astrology, in 1936. She wrote in a homespun style, books that include “Here and There in Astrology,” 1961. In her later years Jacobson broke her hip and was in and out of hospitals. She died on 5 May 1990 at 7:30 PM PDT in Arcadia, Los Angeles, California. She was 97.