Penman Family from Dunfermline - Came to US 1919

Joseph and Agnes Penman came to America on 6/8/1919 from Liverpool England on a ship named Vauban.They resided in Dunfermline, Scotland before coming to America.With them were their children Agnes (8yrs old), Elizabeth (5-7yrs old), and John (4 yrs old).They had two other children Alex and Dorthy while living in Pittsburg, Pa.

What I do know:

Agnes Penman (Daughter) marries Charles O'Conner and had 2 children Donny and Sandy.Elizebeth (Daughter) married Jack Web and had at least 2 children Mary Ellen and Jack.John (son) married Louise and had 2 children Janice and John Craig.John Criag(Grandson) married Florence Gibney and 1 son, John Craig Jr.John Craig Jr married Terri Hale and had 1 daughter, Kylie Elizabeth.

I am looking for information on Joseph and Agnes's parents and any siblings of their children.Any information would be greatly appreaciated.