When I got to the end of my 11th batch of 1940 US Census indexing [Kansas, Sedgwick County, Park, Enumeration District 87-30, Page 9B, recorded May 2], I found a lonely child: Phillip Neal White.
He is listed as being part of family 70, but is listed immediately after family 185. This page was the last of the enumeration district, and he was the last person listed on the page. And, he was less than a month old!
On a lark, I browsed the rest of the images for this enumeration district to find family 70. I found them with the same surname (White) on Page 4A, which was recorded 2 weeks earlier on April 16.
My guess is that Phillip Neal White was born between April 16 and May 2 of 1940, and that the census enumerator, Delphia Thompson, knew the White family personally. I just wonder how much confusion this will be to future researchers when they find the infant son 5 pages away from his family in the census.