Gila Margolin was born into an Orthodox Jewish family in 1951 in London. Her grandparents were from Scotland, Sweden and Russia. In her youth, Margolin was invested in Jewish religious tradition and considered becoming a Cantor. In 1962, she moved to Glasgow and became first acquainted with Christianity. Later she studied at Glasgow University. In 1982, Margolin moved to Cambridge, UK, where she studied Hebrew at Lucy Cavendish College. She converted to Catholicism in 1989.
Gila Margolin (1951 -) founded The Little Sisters of Joy in 1999, initially as a community of prayer, peace and reconciliation within the Catholic Church. In 2004, the Little Sisters of Joy evolved into a foundation.
Margolin has written two books, "The Moving Swan" (2006), and "Where the Woods Meet the Water" (2014).