More information but just as many questions. Found William Park and family in 1841 census as described below on Ancestry.com living with another family:
Walter Johnstone Age 40
Jannet Johnstone age 40
Mary Johnstone age 15
Isabella Johnstone age 10
William Johnstone age 8
Margt Johnstone age 3
Searched 1851 census for William Park with no luck. Did find the following again Ancestry.com
Jean Park Head of household b abt 1803 age 48
Isabella Park Daughter b abt 1838 age 12
William Park Son B abt 1841 age 10
Searched 1861 census found following Ancestry.com:
Jane Park Head of household b abt 1802 age 59
Mary Park Daughter b abt 1829 age 33
William Park Grandson b abt 1853 age 8
Thomas Park Grandson b abt 1857 age 4
Jane Park Granddaughter b abt 1860 age 5 mo
Searched 1871 Census found following Ancestry.com:
Jane Johnstone Head of household b abt 1808 age 63
William Park Grandson b abt 1853 age 18
Thomas Park Grandson b abt 1857 age 4
Jane Park Granddaughter b abt 1852 age 19




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Searched 1881 census found following Ancestry.com:
Jane Park Head of household b abt 1802 age 79
Ann Park Daughter b abt 1841 age 40
Mary Ann Park Granddaughter b abt 1873
This family is living at Lauries Close Cottage which is where Jane Park died in 1882 at the age of 84 years of age. The informant of death was Thos Park Grandson.
I believe that this may be the same family through the years. Not sure why the switch from Jane to Jean and back as well as the back and forth between Park and Johnstone. Ages bounce around a bit as well. There are as many discrepancies in the information as there are things that appear to be too much the same for coincidence.
I would appreciate any comments on this information and the likelyhood that this is the same family through the years