Conservation and Collection Care

R&C staff working on a red dress

This central group of staff helps all our collections with shared management and conservation functions.  

The Registrar’s Office
Registrars ensure the safety and integrity of all the collections and loans to the Natural History Museums of Los Angeles County (NHMLAC), which includes NHM, La Brea Tar Pits, and the William S. Hart Museum. The registrars maintain appropriate documentation for these artifacts and specimens, whether stored within the collections or on display. They process and update records of all collections-related transactions at the museums, including donations, purchases, incoming and outgoing loans, exchanges, deaccessions, and field collected specimens, and report this activity each year to the NHMLAC Board of Governors. They administer coverage of the collections and loans under the NHMLAC fine arts insurance policy. The registrars are also essential to the planning and production of the museums' exhibitions, where their responsibilities include coordination of shipping logistics and oversight of the installation and deinstallation of loan objects.

Conservators are responsible for the care and preservation of the museums' diverse collections, ranging from ancient Latin American ceramics to Hollywood costumes to ornithological specimens. The Conservation Department specializes in objects conservation and serves all of the museums' collections including History, Anthropology, and the natural sciences. Daily activities include assessing and documenting the condition of objects, treating objects when necessary to stabilize them, rehousing objects to better protect them, and monitoring the museum environment to ensure that conditions are safe for the collections. 

Databasing and Digitization
Our database manager works with collections managers and curators throughout the museum to create, preserve, and improve digital information associated with our collections.  That includes getting information that can be over a century old into our central EMu database, making our collections data available online, and figuring out how to manage associated information such as images, videos, 3D scans, and DNA sequence data.


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Conservation and Registrar FAQs

Our Staff

Lina Candrella
Associate Registrar

Lina is primarily responsible for all incoming and outgoing exhibition loans as well as general registration documentation management and collections care.

Tania Collas
Manager, Conservation

Tania is responsible for the care and conservation of objects throughout NHM, including temporary and permanent exhibitions, and works closely with Exhibitions and Registrar's Office staff to ensure the safe handling, mounting, and installation of exhibition objects and specimens.

Marina Gibbons
Assistant Conservator, Conservation

Marina Gibbons is the Assistant Conservator at the Natural History Museum, where she treats natural history specimens as well as cultural heritage objects, and performs testing on new materials proposed for use in exhibit case design.

Bill Mertz
Database & Reports Manager

Bill administers NHM’s collections management system.

Susan Oshima
Director of Collection Services and Chief Registrar

Susan has worked in the Registrar's Office since 2001, has been Chief Registrar since 2007, and has more than 25 years' professional experience in collections registration and logistics.

Veronica Rascona
Assistant Registrar

Veronica processes incoming accessions and outgoing research loans and assists with registration documentation management, database clean-up, and collections care.

Trina E. Roberts, Ph.D
Associate Vice President, Collections

As Associate Vice President for Collections, Trina works with staff in all departments to improve and advocate for our three museums’ incredible collections.


Questions? Contact Susan Oshima, Director of Collections and Research Resources, Chief Registrar, at or call 213.763.3407.