I would like to know whom a street was named after. That's how I am asking it:
Whom was this street named after?
Is the question correct?
I would like to know whom a street was named after. That's how I am asking it:
Whom was this street named after?
Is the question correct?
Yes, it is. But many people nowadays don't use whom at all, and would say (and write):
Who was this street named after?
Anyone who claims that this is not grammatical is living in an earlier century.
Whom was this street named after?
Yes, it is correct.
However, if you were to use who in that sentence, it would be wrong because the subject is this street since it is doing the action. We use whom as an object receiving an action.
In this case,
object → (unknown person)
subject → this street
verb → named after
So, whom would be correct.
Who was being named after this street?
In this case,
subject → (unknown person)
verb → being named after
noun → this street
Add-on: This street cannot be a subject in this case because this is a question of missing person although it would fit.
i.e.
subject → this street
verb → was being named after
noun → Obama
Thus, who would be the correct answer for this sentence.