Dorothy Moon (née Grimbaldeston; 1639 – July 7, 1716) was the 9th great-grandmother of Cometan, classified as one of Cometan’s distant maternal ancestors in the Prescott family line. She is recorded as been born in Kirkham and as having been the wife of Henry Moon (1639 – 1705). She had at least one son named Robert (1674 – 1751) and was recorded as having died at the age of seventy-seven in Kirkham. Dorothy married her husband on 25th July 1705 in Woodplumpton, Lancashire.
In Cometanic ancestry, Dorothy is classified as part of the 11th generation retrograde, thus categorising her as an ancestor of Cometan.