I think Killingsworth is a deeply profound name with a deeper meaning. You say it comes from England. Therefore it is probably related to Jobsworth
Quote:A jobsworth is a person who uses their job description in a deliberately uncooperative way, or who seemingly delights in acting in an obstructive or unhelpful manner.
"Jobsworth" is a British colloquial[1][2] word derived from the phrase "I can't do that, it's more than my job's worth"