Did Alice Mitchell (the mom) from Dennis the Menace work?

[Vinnie]

If so what was her job?

Vinnie

[Mossopp]

I'm not sure if she worked in the cartoon but she did in the movie. I think she worked for an advertising company or something like that.

[17Mar59]

That may be because the movie is of more recent vintage,the
cartoon and tv series are of course older and in them she is
a housewife.And believe me any mother who has a Dennis for
a son has a full time career just keeping him out of trouble!!!!!:)