Grace's parentage remains unclear. Linda Lee, in her 1989 biography "The Bruce Lee Story", suggests that Grace had a German father and was a Catholic. Bruce Thomas, in his influential 1994 biography "Bruce Lee: Fighting Spirit", suggests that Grace had a Chinese mother and a German father. Lee's relative Eric Peter Ho, in his 2010 book "Tracing My Children's Lineage", suggests that Grace was born in Shanghai to a Eurasian woman named Cheung King-sin. Eric Peter Ho said that Grace Lee was the daughter of a mixed race Shanghainese woman and her father was Ho Kom Tong. Grace Lee said her mother was English and her father was Chinese. Fredda Dudley Balling said Grace Lee was three-quarters Chinese and one-quarter British.