Margaret May (née Rainbird; 1490 – ????) was the 15th great-grandmother of Cometan, classified as one of Cometan’s distant paternal ancestors in Stringfellow family line. Born in Suffolk, Margaret is recorded as having been the wife of Lawrence Rainbird (1460 – 1505) and to have given birth to their son named Thomas in 1485. Little else is known of Margaret’s life except for that she died at the age of fifty in Walsham-le-Willows, Suffolk.
In Cometanic ancestry, Margaret is categorised as part of the 17th generation retrograde, classifying her as a distant ancestor of Cometan.