I think I might be able help:
I have in my records, a Basil, son of Arthur Basil Ivens who married Marie Nystrom and moved to the USA. He in turn was the son of Dr. Arthur Somers Ivens (1850 - 1927), and was born in Eydon, a small village in Warwickshire.
If so, this makes him part of the 'Warwickshire Ivens tree - a large tree going back to Richard Iven (circa 1660) and possibly Ann Iven of 1548.
The tree is larg such that I have it on two consecutive spreadsheets which I could send you.
In return, if you have anything on your Basil to help me expand my understanding, that would be good.
The Basil that I started with in this message had 2 sisters, Daisy and Margaret.
Any help?