Alexander Thomson and Mary Clark

[Neale1961]

I have listed the children and their birth dates for both families in my above posts.

The two Johns have different birth dates and places.

See Scotlands people for Scottish records
https://www.scotlandspeople.gov.uk

[Rozzy]

Yes, thank you very much Neale for the confirmation of the 2 different Johns.

My problem is that other people (including experienced researchers) have also listed children, and their birth dates, to those families, but have them with different parents (the ones who emigrated versus the ones who stayed). The children were born in a similar area.

I am not questioning your research, and do not mean to offend.

I will look at the link you sent, thank you.

[Dundee]

My problem is that other people (including experienced researchers) have also listed children, and their birth dates, to those families, but have them with different parents (the ones who emigrated versus the ones who stayed). The children were born in a similar area.

No, it isn't your problem.  The information that other people choose to put on their family trees is not your concern regardless of how wrong it is, just don't look at them.

Debra 

[Neale1961]

See my earlier posts:
Your family have children baptised in Largs. They can be confirmed on the shipping record.
The other family have their children baptised in Kirkoswald, and they can be confirmed in the census (as posted).
I would recommend not following public trees which are almost always totally or partly incorrect.

[sparrett]

 It would be up to you whether or not you attempt to communicate with the  "experienced researchers" you mention in order to contradict their findings.

But--Some have found this can be a futile and time-wasting exercise. 

Better to focus on your own research.
Sue

[Rozzy]

Great comments everyone, thank you.

Dundee I know what you mean, but it becomes my problem when my family is interfered with on public trees.

Sue, yes, I have had that futile and time-wasting exercise (and accusations).

Neale thank you for clarifying the baptisms at Largs as opposed to the baptisms at Kirkoswald.

I will attempt to (gently) get Barbara and Jean removed from the Australian family.

Thanks so much everyone, great result in such a short time. Much appreciated.

[Forfarian]

Could I please have any source material you might have to ensure that the correct children are with the correct parents please, as this is where my roadblock started.

All primary source material is at www.scotlandspeople.gov.uk.

1841 census, in Girvan: Alex, 30; Mary, 30; Jane, 10; John, 8; Barbara, 6; Agnes, 4; Alex, 2; Sara, 0.

1851, Kirkoswald: Alex, 43; Mary, 43; Barbara, 17; Agnes, 15; Alex, 12; Sarah, 10; Margaret, 8: Mary, 5; William, 3; Elizabeth, 1; Ann Dick, 0.

Using the facility to search for deaths by mother's maiden surname, there are possible deaths for all except Barbara and Sarah, though I am dubious about James and Alexander, as both of those deaths are in Perthshire, not in or close to Ayrshire

Jane may have died in Ayr in 1905 or Maybole in 1909, but there are two other Jane Thomsons with mother's maiden name Clark of roughly the right age
John may or may not be the one who died in Blairgowrie in 1870
Agnes died in Barr in 1912
Alexander might or might not be the one who died in Logierait in 1905
Margaret is probably the one who died in Girvan in 1929 but there are four other Margaret Thomsons with mmn Clark of roughly the right age.
Mary died in Sorn in 1877
William died either in Maybole in 1922 or Dumfries in 1923
Elizabeth died in Hurlford in 1905
Ann Dick died in Bute in 1931

You will be very wise to follow the advice already given to ignore all online trees, try to forget anything you have seen there, and start from scratch with the primary records.

Though as you are descended from the Largs family you can probably safely dismiss all of the Kirkoswald/Girvan family as unrelated.

[Rozzy]

Thank you Forfarian, for all of your information, I do appreciate that detail.