Two texts by Marian Dockerill (1878–1972) are often consulted as sources in research on occultism in the early twentieth century. A source-critical reading casts doubt on their authenticity. Based on clear evidence, the journalist and book author William Seabrook may be considered the author. The Dockerill texts fit seamlessly into his work but should be used with great caution as sources on the life dates of the persons described as well as contributions to female confessional literature in the environment of new religious movements.