Eisenhower Library finding aid, Principal File, p. 105: the box number 91 begins at the entry PARKER, KENNETH, so the PATTON folders on the next page fall in Box 91.
Image · dated undated (finding aid page) · source: Dwight D. Eisenhower Library (published finding aid)

How it is shown: Complete page as supplied; no crop, no retouch, no search highlight. A locator page: it shows the box number only.
Keep in mind: What the page says: Confirmed from the page image: '91' stands in the margin beside 'PARKER, KENNETH [president, Parker Pen Co.; ...]'; the page lists other correspondents (Page, Paley, Parkinson, Parks, Patch, Patterson). It does not name Clarkson. IDENTITY: not applicable to a name on this page. Herbert Slayden Clarkson is tagged only because the page fixes the box (Box 91) for the Clarkson inspector-general folder entry on p. 106; the two pages go together.