Larry, Daryl, and Daryl indeed. Moses is English for Moishe, but
that does not mean that a particular Moses had the Hebrew name. It
is possible that, for example, your relative, Moses, had the Hebrew
name Menachem or Yedidiah or anything else-and liked Moses (in
English) better than other alternatives. Then his brother Moishe
came, then Mottel came.
Confusing, yes. Impossible, no. It is not even improbable. It is
as likely as Larry, Darryl, and Peter.