- Ancestry tree: Hero Family Tree
- Birthplace / Origin: Hartford, CT
- Master / Mistress: Samuel Olcott (d. 1781); Samuel Olcott (d. 1841)
- Master's / Mistress' Ancestry tree: Olcott Family Tree
- Additional Relationships: When Samuel Olcott died in 1781, he still owned Pegg, her child, Primus, Peter, Betty and Jack. Former slaves included Racheal Dige.
- Most recent residence: Hartford, CT
- Longest place of residence: Hartford, CT
- Notes: Hagar Hero was born in 1748; after 1805 (age 57) she does not appear in any census or city directory.
- Bibliographic sources: KC
- Confidence Level - confidence_level - Slightly Confident
- Ethnicity/Race/Tribal Affiliation: Black (defined as Unknown origins, but listed as a person of color )
- Gender: Female
Hagar Hero was born in 1748; after 1805 (age 57) she does not appear in any census or city directory.