Hierarchy classification:

1. top of the aat hierarchies
2. Agents Facet
3. People (hierarchy name)
4. people (agents)
5. [people by occupation]
6. [people in crafts and trades]
7. [people in crafts and trades by activity]

Anotations

Scope note:

Those engaged in making changes to an object or structure so that it will closely approximate its state at a specific time in its history. When changes made are to prevent further deterioration, see "preservationists." More generally, for those who undertake treatment, preventive care, and research directed toward long-term safekeeping of cultural and natural heritage, see "conservators."