Bitter pearl
A compound name combining Mary and Margaret. Mary is of Hebrew origin meaning 'bitter' or 'beloved', while Margaret is of Greek origin meaning 'pearl'. This combination was historically popular in Catholic families but is now considered a rare, vintage double-barrel name.
The real-world identity of Snow White · Once Upon a Time
Character known as 'Mary Margaret' · The Sound of Music
American actress known for Dawson's Creek
US births per 5-year period, 1990–present (SSA data).