anon for this-
“All Summer in a Day” is not familiar – I’ll B”N keep it in mind.
Finney’s best-known book is “Time and Again” (highly recommended). The bad news is, once you read that, there’s nowhere to go but down. He also wrote a famous short “Of Missing Persons”.
I have no idea what the answer to your previous page question is, but since you say it is a “trick” I can think of two possibilities: a) Singer Paul Simon wrote one, but the late Senator didn’t. b) Whitman predeceased Lincoln (I know he was a 19th century poet, but not much else). I’ll guess Whitman.