Wikipedia:Articles for deletion/Lady Margaret Butler
Meets  as, although the coverage in individual sources (at least those viewable through Google Books) doesn't appear to be in-depth, there are several with a short section the subject, as pointed out by
— User:Boleyn, 14:03, 18 January 2013 (UTC)
Stance: keep
Cited policy: WP:BASIC (Wikipedia:Notability)