Hi, I am also researching Morrisons in Valley Township. My line is from Edward (senior) and Sarah Lucas' son, John (born 1784 New Jersey), brother to your Edward (junior). I found John in Valley Township in 1850 with his son, John Jr. They moved to Wisconsin by the 1860 census (John's other son, William, also moved to Wisconsin) - Beaver Dam. Have you been able to gather any more information about Edward (senior) and Sarah Lucas?
I have only been able to find the following:
From history of Columbia and Mountour Counties, PA. They resided in New Jersey (1780, 1793) before moving to Mahoning Township ca 1804. Valley Twp was formed in 1839 from Mahoning. Mahoning belonged to Northumberland county, then Columbia, then Montour. Northumberland was formed 1772 from Berks and Northampton counties. Children all born New Jersey. Edward of Scottish descent.
Appears in Tax lists for Chesterfield, Burlington Co, NJ 1780 and 1793.