A booklet " History of Manx people who came to America " has extracts in :-

http://www.isle-of-man.com/manxnotebook/famhist/genealgy/miom1991.htm

In particular chapter 8 mentions a Crellin family emigrating with a Crowe family.

Thomas Crellin and Cath Kneal had amongst their children a Patrick and an Elizabeth.

Could Patrick and his family have emigrated with his sister Elizabeth and her family?

Len Faragher