core + attic (Attic Area): these terms have been either deprecated from the core or extentions, or removed from pending as not accepted into the full vocabulary.

memberOf

Canonical URL: http://schema.org/memberOf

Thing > Property > memberOf

An Organization (or ProgramMembership) to which this Person or Organization belongs.

Usage: Between 1000 and 10,000 domains

Inverse-property: member.

Values expected to be one of these types
Organization
ProgramMembership
Used on these types
Organization
Person
Sub-properties
affiliation

Schema Version 3.4