Sorry if my post was confusing and too much information. I now know the following from the 1841 census:
Mochrum Litterick Agnes 1 Wig 1,10 Landberrick 6
Mochrum Litterick Hugh 22 Wig 1,10 Landberrick 6
Mochrum Litterick James 37 farmer Wig 1,10 Landberrick 6
Mochrum Litterick Jane 34 Wig 1,10 Landberrick 6
Mochrum Litterick Jane 35 Wig 1,10 Landberrick 6
Mochrum Litterick Jannet 10 Wig 1,10 Landberrick 6
Mochrum Litterick John 5 Wig 1,10 Landberrick 6
Mochrum Litterick Robert 1 Wig 1,10 Landberrick 6
Mochrum McFadzen Joseph 20 male servant Ire 1,10 Landberrick 6
This tells me that the trail to the Fadzen/McFadzen I am chasing now goes to Ireland. If anyone has any helpful suggestions when I get there, please let me know.