Regarding an author who is referred to as "xxx le-mishpahat yyy" (e.g., Eliyahu ben Aryeh Leyb le-mishpahat Binkovitser, mi-Kobrin):
It may mean that Binkovitser is the surname,
but it may also be a name in the mother's family
or just the name in the whole lineage that he's proudest of.
As a result, the heading should be "Eliyahu ben Aryeh Leyb, mi-Kobrin.",
and not "Binkovitser, Eliyahu ben Aryeh Leyb.