Key to the purpose and mission of Glencairn Museum is its affiliation with the New Church. Strongly rooted in the teachings of the Old and New Testaments, the New Church also adds the promise of a new level of understanding for all people.

Glencairn Museum is part of the Academy of the New Church, which is affiliated with the General Church of the New Jerusalem. The Museum enjoys a close relationship with Bryn Athyn College, the Academy's Secondary Schools, and the Bryn Athyn Church School.

Glencairn Museum is a member of the Bryn Athyn Historic District, a National Historic Landmark since 2008.