File consists of material on Princeton, 1912-14, including photographs, copies, and clippings.

1 hand-written page of case notes.; 16 unmounted photographs with hand-written notes.; 2 hand-written pages of cases.; 2 pages of operation drawings.; 3 hand-written cases.; 2 reprints of American Journal of Physiology, vol. 55 (2) March 1921.; 6 hand-written pages of cases (some with operation drawings).; 1 operation drawing with hand-written notes.; 2 pages of hand-written cases.; 2 pages of hand-written cases.; 3 pages of hand-written cases plus 1 page of operation drawings.; 1 group of hand-written cases plus a diagram and 2 drawings.; more groupings of hand-written and typed cases plus diagrams and operation drawings.

1 hand-written and signed letter from George Penfield to WGP (1 sheet). - 02.02.1915.; 31 typed letters (59 sheets), 1 with hand-written note from family. - 16.12.1915-29.06.1915.; 1 holograph account (school fees). - 15.07.1916.; 1 carbon from letter, Galahad School to Alumnae. - pre 30 May.

4 hand-written and signed letters (6 items), 60 typed letters (89 sheets) (some are incomplete, or mixed up).

Typed letter, 1 sheet (Ruth Penfield Inglis's illness) with holograph notes by WGP. - 01.04.1919.; Typed letter (2 sheets, 4 p.) "Ruth's 3rd attack". - 17.04.1921.; Hand-written and signed letter, 1 sheet, (en route, Northern Pacific). - n.d. (Tues. a.m.).; 1 p. holograph notes, by WGP re telegrams. - 1928-1929.; 2 telegrams. - 19.11.1928-5.12.1928.; 1 hand-written and signed letter (2 sheets), 10 typed letters (14 sheets). - 18.09.1928-26.11.1928.

• Diary, black leather bound (13 x 9 cm) Dayloyue, 2 series of entries.
• Most of the items in D-C/D 30 were found together in two flat boxes with other memorabilia. They were clearly items HKP had saved over the years.

• The Yale Record, Princeton Number XLI (15). - 30 May 1913.; 1913 Bull, 1 (1). - Nov. 1913.; Ye 1913 Bulle 1 (2). - Jun. 1914.
• Most of the items in D-C/D 30 were found together in two flat boxes with other memorabilia. They were clearly items HKP had saved over the years.

[77-1081] A sterilizer.; [84-0540] The plaque for the opening of the EEG and Neurophysiology Laboratory in January 1939.

[83-0088] Brain surgery in progress, 1947. {PA 128317}.

[1953] Jasper as tour guide.; [1974] Brass quintet at Auditorium.; [1977?] interior of laboratory with camera.