Still not getting anywhere with John Muir.
I've done my best to travel backwards and to put pieces where they go and I still can't find anything on John Muir, Janet "Mure", their daughter Janet Muir and her husband Richard Wallace.
It is getting frustrating.
I have the birth record for Janet Muir that states her father was John Muir, her mother was Janet "Mure". Record states birth in Carnwath, Lanarkshire in 1745.
Based off that, I've guesstimated the parents birth years as 1725. I have not found anything yet that seems feasible for either of the parents.
I have the birth record for Richard Wallace, son of the above Janet Muir and Richard Wallace. Record states parents as Richard Wallace and Janet Muir 1772 Carnwath, Lanarkshire.
I've not found a marriage record for Janet Muir and Richard Wallace.
I've not found a birth record for Richard Wallace.
I have the marriage record for the son Richard Wallace and Janet McKay (macky). Record states married 1797 Carstairs, Lanarkshire.
I have the birth, marriage and death record of their child, Mary Wallace.
So you see, I have followed what the records are giving me.

I don't have enough credits to ScotlandsPeople to keep guessing and I'm getting frustrated, to say the least.