Theresa Thornycroft British artist (1853-1947) (1853–1947) Parents Mary Thornycroft Thomas Thornycroft Children Siegfried Sassoon Michael Thornycroft Sassoon Hamo Watts Sassoon Siblings Helen Thornycroft John Isaac Thornycroft Frances Thornycroft Hamo Thornycroft Alyce Thornycroft Anne Thornycroft Partners Alfred Ezra Sassoon