Dear Julien,
I have been researching the Hivon's/Yvon/Evon and have got back to one man. Yves Phlem. He is the original ancestor who came over from Lower Brittany France to Quebec.
In one generation there was only one son, a Joseph.and he came to Sandwich Ontario and then River Raisin, Monroe Michigan.
If you are interested contact me at k_karmak@hotmail
The address above has been changed and I do not know how to change it here.
Candi