I did not label accurately the parts of the following post. Labels inserted below between 
Nancy makes the vital points. It seems Vivien was (at least potentially) a pretty good poet!
From: T. S. Eliot Discussion forum. [mailto:[log in to unmask]] On Behalf Of Carrol Cox
Sent: Friday, August 14, 2015 6:51 PM
To: [log in to unmask]
Subject: Re: Children
[p] They = Tom & Viv. I am interested in what sparked Viv's line about children. My original query got no response so I came at it a different way.
[COX] Perhaps she had literary reasons? Why does any writer compose any line?