Duncan Macleod gave evidence to the Napier Commission at Barvas on 6 June 1883. He is found with his wife Janet, both aged 61, in the 1881 census. Also found at their home is their son Angus (29, fisherman) and Mary (21). Mary's son Malcolm Finlayson (2) and her brother Norman (19, a pupil teacher) are there as well.
In the 1871 census, Duncan and Janet are clearly marked as being from South Bragar, which corroborates the entry in the Napier Report. Their children are listed as John (27), Angus (19), Sue (17), Malcolm (13), Mary (11) and Norman (9).
I have been unable to trace Duncan before 1871 or after 1881; neither have I managed to find his death record.