BibTeX:
@incollection{Various,
  author = {Various},
  title = {At a time when Juliet Thompson’s mother was suffering much grief},
  booktitle = {bahaistories.com archive},
  url = {https://bahaistories.com/subject/bitterness},
}

APA:
Various. At a time when Juliet Thompson’s mother was suffering much grief. In *bahaistories.com archive*.

MLA:
Various. "At a time when Juliet Thompson’s mother was suffering much grief." *bahaistories.com archive*, n.d..

Chicago:
Various. "At a time when Juliet Thompson’s mother was suffering much grief." In *bahaistories.com archive*, n.d..