1. a person who writes or presents a memorial or petition
Usage: formal
2. a person who writes memoirs or biographical accounts

Examples

• The memorialist submitted a formal petition to the city council.
• As the family’s memorialist, she documented their immigration story.
• The veterans’ group appointed a memorialist to draft their request.
• He served as memorialist for the historical society’s archives.
• The memorialist presented compelling evidence to support the cause.
• She became the memorialist of her grandmother’s wartime experiences.