Which of these elections were stolen?

[ag]

Saying that the "rightful winner" was denied the election and calling that stolen is just silly. There is no "rightful winner" in any election and seeing that supposed "rightful winner" ends up loosing is not voter fraud at all, just a regular possible election outcome.

1876, arguably, wasn't a regular election outcome: it was not decided by the rules that everybody believed were in place before the election was held.

The rest were fine, of course.