The Christine Smith Conservation files (1945-2016; 2.69 cubic feet) concern the conservation of the wills of George Washington and Martha Washington. The files contain slide photographs of each page of each will, usually with additional detail photos. Each set of before-treatment slides represents the wills as they appeared in 1998, approximately nine decades after manuscript restorer William Berwick preserved them; the after-treatment slides document the appearance of each will in 2003.

There are also photocopies of materials concerning each manuscript's preservation history, including damage during the Civil War, early restoration attempts, storage formats, and exhibition histories.

For George Washington's will, there bits of the will paper and ink (for future microscopy studies), nine microscope slides of the will's materials, specimens of the translucent paper that Mr. Berwick used to tack together the split sheets prior to silking them, the inlay/mounting paper that he used, and the double-sided mat housings that Christine Smith used. For Martha Washington's will, there are specimens of the inlay paper and silking crepeline.

Other materials included were specifications and papers concerning the new case built to house George Washington's will in 2002, written documentation on the restoration of both wills, papers about an exhibition of the wills held at Mt. Vernon, and audiovisual materials documenting or publicizing the restoration of the Washinton wills.