Whomever/whoever

AnonymousThank you to whomever returned my..

Thank you to whoever returned my...

CJ

"whomever" is the correct, since you need an object pronoun after a preposition.

Thank you to whomever returned my..
Thank you to whoever returned my...

Of course, "whoever" is the subject of returned. I apologize for posting without double-checking before. It seemed clear to me. It won't happen again, I'm terribly sorry.

tarirotari"whomever" is the correct, since you need an object pronoun after a preposition.

It doesn't work that way. It doesn't depend on the function of whoever/whomever in the main clause. It depends on the function of whoever/whomever in the subordinate clause.

If it's any consolation to you, I used to get tripped up on this myself.

tarirotariOf course, "whoever" is the subject of returned.

Exactly.

tarirotariI apologize for posting without double-checking before. It seemed clear to me. It won't happen again, I'm terribly sorry.

Apology unnecessary. Getting a little confused over this point of grammar can happen to anybody.

CJ

Thank you, CalifJim, for your comforting words.