Consists of loose leaf manuscript notes in various hands (predominantly Taylor White's) describing the birds depicted in Volume 2. Transcriptions and English translations of individual notes are provided within the record for each animal.

Consists of loose leaf manuscript notes in various hands (predominantly Taylor White's) describing the birds depicted in Volume 1. Transcriptions and English translations of individual notes are provided within the record for each animal.

Consists of loose leaf manuscript notes in various hands (predominantly Taylor White's) describing the mammals depicted in Volume 6. Transcriptions and English translations of individual notes are provided within the record for each animal.

Consists of loose leaf manuscript notes in various hands (predominantly Taylor White's) describing the mammals depicted in Volume 5. Transcriptions and English translations of individual notes are provided within the record for each animal.

Consists of loose leaf manuscript notes in various hands (predominantly Taylor White's) describing the mammals depicted in Volume 4. Transcriptions and English translations of individual notes are provided within the record for each animal.

Consists of loose leaf manuscript notes in various hands (predominantly Taylor White's) describing the mammals depicted in Volume 3. Transcriptions and English translations of individual notes are provided within the record for each animal.

Consists of loose leaf manuscript notes in various hands (predominantly Taylor White's) describing the mammals depicted in Volume 2. Transcriptions and English translations of individual notes are provided within the record for each animal.

Consists of loose leaf manuscript notes in various hands (predominantly Taylor White's) describing the mammals depicted in Volume 1. Transcriptions and English translations of individual notes are provided within the record for each animal.

Includes birthday cards and a file of postcards and photographs, some of which are members of Dr. Penfield's family. The file is labeled "Keepers after Hudson, Book 8. - 1". The file includes:
-a photograph of Dr. Penfield, Dr. Cone and other colleagues;
-28 postcards re. Dr. Penfield and Mrs. Penfield in Paris in 1917;
-photographs of Princeton reunions;
-a reproduction of a photograph of Dr. Penfield's mother;
-a photograph of a drawing of the painting made by Dr. Penfield on a rock at Magog Meadows;
-a reproduction of Dr. Penfield at the launching of A Second Career; and
-3 reproductions of a photograph of William Osler.