Here, with some comments, are the figures as found in the censuses:
5 households with 31 people – 6.2 people per hearth
In the 1840s the 338 people of Pabbay were Cleared, many to Scalpay. A figure of 20 families being sent there by Captain Sitwell , who was a Commissioner to the 7th Earl of Dunmore, indicates that this was the influx of 1846, just a year after the death of the 6th Earl and hence during the Dowager Countess’s time as her son’s Tutor. These 20 families had been preceded by an earlier group of 20 in 1842/3:
45 Households with 282 people – 6.3 people per hearth
In his Report of 1851, Sir John M’Neill used a figure of 5.2 people per household in his calculations so the average for Scalpaigh in that year, 6.2 people per hearth, is significantly larger.
69 Households with 371 people – 5.4 people per hearth
82 households with 419 people – 5.1 people per hearth
96 households with 532 people – 5.5 people per hearth
87 households with 484 people – 5.6 people per hearth
122 households with 582 people – 4.8 people per hearth
There is plenty more to be investigated here, such as occupational change during this period, but I think it is clear that, apart from the brief interlude of 1891, Scalpaigh’s overcrowding grew steadily worse as the century progressed. The population had more than doubled within 50 years of 1851, a time when there had already been insufficient land to support its 45 families, so the circumstances in which those people found themselves at the dawn of the 20th Century must have been truly desperate.
Pabbay, the island where so many had originated, had once been known as ‘the granary of Harris’. It’s people were cleared to feed sheep and perhaps as many as a third of its human mouths sent to face potential starvation on Scalpaigh…