Julie Campbell Tatham (June 1, 1908 – July 7, 1999) was an American writer of children's novels, who also wrote for adults, especially on Christian Science.

Julie Campbell was born on June 1, 1908, in Flushing, New York, United States.

She was the seventh of ten children of Julia deFres (Sample) and Archibald Campbell, an Army general, she also was a granddaughter of an Army general.

[1] On March 30, 1933, she married Charles Tatham Jr, and had two sons.

Under her married name, she also wrote some books of Helen Wells's series: Cherry Ames and Vicki Barr.