I was trying to get at why this other person thought they came from Glack. There has to be a reason for them thinking that, and if the reason is good it should be possible to replicate their findings.
Although Glack is in the parish of Inveravon, the parish kirk of Kirkmichael is much closer than the parish kirk of Inveravon, so it would make sense for them to attend services there, and to seek baptism from the minister of Kirkmichael rather than the minister of Inveravon.
Or it is even possible that Glack was in a detached part of Kirkmichael, as an enclave surrounded by Inveravon.
I see from LIBINDX that Helen Fraser, aged 74, died in Keith in 1872, and that Helen Fraser is in the 1851 census there, birthplace Kirkmichael. Also that James Fraser died in Keith in 1875 aged 71, and that he and his wife, both born in Kirkmichael, were in the 1851 census there.
However I shall not look into this any further in the meantime.