Collection Description

The bulk of the collection comprises records of Longstreth's architectural practice (111 projects spanning the years 1943 to 1984). The collection also contains a smaller amount of personal material.

Longstreth preserved a substantial amount of material related to his collaborations with Richard Neutra, beginning with his work in Neutra's office in California, and concluding with his supervision of Neutra's institutional and domestic commissions in the eastern United States in the 1950s and 1960s.

Primary Documented Architects, Engineers, and Others

There are no architects, engineers, or others linked to this record.

To view records of holdings in this collection, click the Holdings tab.

Philadelphia Architects and Buildings | About | Participating Institutions | Feedback | Search | Login
Website and System: Copyright © 2026 by The Athenaeum of Philadelphia.
Data and Images: Copyright © 2026 by various contributing institutions. Used by permission.
All rights reserved.