Came across a few bits.......
Death:
Mary Kincaid age 75
widow of William-ship yard labourer
died: 15 March 1913 Albert St Govan
father:Robert Long shoemaker(dec)
mother: Mary Moore(dec)
informant: Robert Kincaid son
Death:
William Kincaid age 61
maried to Mary Long
died: 7 May 1907 23 Albert St Govan
father: Robert Kincaid farm labourer(dec)
mother: Margaret Gallacher(dec)
informant:Margaret Kincaid daughter
Looking at 1891 census at 130 Main St Govan you have William & Mary as well as Margaret their daughter with the addition of Samuel Long 52 born about 1839 Ireland.It appears he may be related to Mary Long. There are 2 Samuel Longs in 1901 Irish census and 3 who die in county Donegal between 1910-1918. The name Gallacher is very common in coubty Donegal. On the children of William & Mary birth certs in Scotland the parents marriage is listed as 14 Feb 1857, 14 March 1857 & 14 April 1855 but haven't been able to locate it.