When did ghosts start wearing sheets?

[Kron]

HP Lovecraft’s The Rats in the Walls (1926) essentially calls out ghosts in sheets as a tired trope of hack horror authors. When I’m home I’ll pull the quote…

[Kron]

@HP Lovecraft

I realise how trite this sounds—like the inevitable dog in the ghost story, which always growls before his master sees the sheeted figure—yet I cannot consistently suppress it.

Not quite what I remembered, but still in the ballpark, I think.