A list of those appearing on the census records, arranged alphabetically by location:
1841
Norman Mackenzie, Airdhang, Road Constructor
1851
John Macleod, 29, Ardhasaig, Road Labourer
Roderick Mackinnon, 18, Cluer, Road Labourer
Alexander Mackinnon, 14, Cluer, Road Labourer
Murdo Macdonald, 20, Cluer, Road Labourer
Murdo Maclellan, 30, Cluer, Road Labourer
Neil Maclellan, 48, Cluer, Road Labourer
Donald Macullip, 20, Cuidinish, Road Labourer
Alexander Macullip, 20, Cuidinish, Road Labourer
Donald Macleod, 21, Direcleit, Road Labourer
Angus Campbell, 20, Direcleit, Road Labourer, Visitor
Ewan Maclellan, 17, Direcleit, Road Labourer, Lodger
Roderick Mackinnon, 55, Flodabay, Road Labourer
Peter Macaskill, 20, Kyles Scalpay, Road Labourer
William Mackinnon, 18, Leaclee, Road Labourer
Donald Mackinnon, 18, Leaclee, Road Labourer
Norman Macleod, 22, Leaclee, Road Labourer
Neil Macleod, 19, Leaclee, Road Labourer
John Morrison, 37, Manish, Road Overseer
Peter Macdonald, 24, Meavag, Road Labourer
Angus Macdonald, 17, Sradabay, Road Labourer
Murdo Macauly, 15, Scradaby, Road Labourer
Alex Grant, 37, Tarbert, Road Contractor, Lodger
Donald Macdermid, 17, Tarbert, Road Labourer, Lodger
John Macdonald, 50, Tarbert, Road Labourer
Angus Macdonald, 25, Tarbert, Road Labourer, Lodger
John Macdonald, 20, Tarbert, Road Labourer, Lodger
Norman Macaskill, 20, Tarbert, Road Labourer
Donald Mackay, 20, Tarbert, Road Labourer
John Mackay, 30, Tarbert, Road Labourer, Lodger
Norman Macleod, 50, Tarbert, Road Labourer, Lodger
Donald Macleod, 45, Tarbert, Road Labourer
Finlay Macleod, 20, Tarbert, Road Labourer
Angus Macleod, 19, Tarbert, Road Labourer
Angus Martin, 42, Tarbert, Road Labourer, Lodger
Donald Mackinnon, 20, Tarbert, Road Labourer
Kenneth Morrison, 48, Tarbert, Road Labourer
Allan Morrison, 37, Tarbert, Road Labourer
Allan Morrison, 23, Tarbert, Road Labourer, Lodger
Duncan Morrison, 19, Tarbert, Road Labourer, Lodger
Angus Morrison, 17, Tarbert, Road Labourer
John Paterson, 30, Tarbert, Road Labourer, Lodger
William Fraser, 20, Urgha, Road Labourer
1861 (none discovered)
1871
Norman Mackenzie, 80, House at Carragrich, Road Contractor
Roderick Ross, 48, Geocrab, Road Contractor
1881
Donald Mackenzie, 55, Carragray, Road Contractor
Murdo Mackenzie, 40, Carragray, Road Contractor
1891
Donald Maclennan, 45, Scaristavore, Road Foreman
1901
Donald Kerr, 38, Bernera, Road Labourer (b.Strond)
Macdonald, 52, Kintulivig, Road Contractor
The 1851 Census was taken on the night of 30th/31st March.
Quite why it records such a vast population of road workers, including no less than 20 living in Tarbert, is explaine by this:
Construction of the road from Stornoway to Harris, through the parish of lochs, began in 1830. It was eventually completed in 1854, and though it was a road only in the vaguest sense of the word…
Ref: http://www.witpg.org.uk/articles3.htm
My suspicion is that the census happened to take place at a period of unusually vigorous roadworks and the proportion of those listed as lodgers lends credence to this suggestion.
If I am correct, then travellers in Harris that Spring were probably a tad more sympathetic at being inconvenienced by the roadworks they encountered than would be the case today for these were connecting communities with proper, passable, paths perhaps for the very first time.