When Thomas Rouchhead b. 1869 married a Lizzie Fleming in 1892 in Kilsyth, he gave his name as Thomas R Jarvie, son of a Thomas Jarvie and a Margaret ms. Rochhead. Both Thomases coal miners by trade. There is the image of the marriage cert on an online tree I have just found where this info is from.
This is likely them in 1891:
Thomas Jervie 59 labourer b. Stirlingshire, Banton (?spl)
Margar Jervie 58 wife b. Lanarkshire, Airdrie
Thomas Jervie 21 miner b. Kilsyth
Address: Private House, Kilsyth
No marriage showing on SP for Margaret and Thomas, or not that I can see from searches.
I can't easily see the 1881 entry for Thomas, Agnes and Margaret on the transcript.
For Agnes, I think she also shows as Jarvie in 1891 (maybe Thomas Jarvie was the father to the later children?):
Agnes Jarvie, 24, Cook Dom Serv. b. Kilsyth working at the Temperance Hotel in Larbert.
Monica