The number of people verified to have been killed by (non-rabid, non-domesticated) wolves in North America since 1900 is just two, both of which have come in the last 15 years. There are some other cases from the 1920s that might have been wolves but since reporting was a little more lax back then, we'll never know for sure.

https://en.wikipedia.org/wiki/List_of_wolf_attacks_in_North_...