Deletion of Lavinia Norcross Dickinson

Comment: Relationships to notable people often result in enough being written about their family members that those family members also become notable; note that  qualifies the invalidity with "unless significant coverage can be found on A". While there is currently only one source in the article, there are more that can be added, including ''Critical Companion to Emily Dickinson: A Literary Reference to Her Life and Work'' https://books.google.com.au/books?id=FuIlLuLqOaYC&pg=PA281&dq=%22Lavinia+Norcross+Dickinson%22&hl=en&sa=X&ved=0ahUKEwjA6JS75_jjAhXY7XMBHShkAVkQ6AEINTAC#v=onepage&q=%22Lavinia%20Norcross%20Dickinson%22&f=false and ''Emily Dickinson: Personae and Performance'' https://books.google.com.au/books?id=53x2cyrkm8oC&pg=PA237&dq=%22Lavinia+Norcross+Dickinson%22&hl=en&sa=X&ved=0ahUKEwjA6JS75_jjAhXY7XMBHShkAVkQ6AEIOzAD#v=onepage&q=Lavinia&f=false. Even in a 1945 publication, ''Ancestors' Brocades: The Literary Discovery of Emily Dickinson, the Editing and Publication of Her Letters and Poems'', it looks like there is a lot on Lavinia https://books.google.com.au/books?id=JuBBAAAAIAAJ&q=%22Lavinia+Norcross+Dickinson%22&dq=%22Lavinia+Norcross+Dickinson%22&hl=en&sa=X&ved=0ahUKEwjA6JS75_jjAhXY7XMBHShkAVkQ6AEIRjAF - and, as the article says, "Lavinia "Vinnie" Dickinson was instrumental in achieving the posthumous publication of her sister's poems ... Despite promising her sister that she would destroy all correspondence and personal papers, Vinnie sought to have her sister's poetry edited and published". A lot more about Lavinia herself, her relationship with Emily and other family members, and her role in publishing Emily's poems, can be added to the article
Stance: keep
Cited policy: Wikipedia:Notability (WP:INVALIDBIO)

Comment: Her efforts to disseminate the greatest poet of her generation's work has been itself the subject of scholarly work, and is almost always mentioned in classrooms across the English-speaking world as ''the'' test case of a relative saving the written work of an extremely famous writer that was supposed to be destroyed. This is not |merely some writer's younger sister; she is the exemplar of an editor of one of the greatest writers in the English language; the subject is clearly notable herself
Stance: keep
Cited policy: Wikipedia:Arguments to avoid in deletion discussions (WP:NOTINHERITED)

Comment: It appears that a proper  was not performed. A JSTOR search under "Vinnie Dickinson" turns up tons of stuff, as does a Google Scholar search
Stance: keep
Cited policy: Wikipedia:Articles for deletion (WP:BEFORE)