Wini,
I think I've taken this line of enquiry as far as I can without using too many more credits.
The last search I did makes a lot of assumptions and it still leaves too
many to choose from (for me anyway).
William died East Kilbride
Samuel died Hutchesontown
Donald died Bridgeton.
On that basis, I searched for Agnes McDonald deaths in Lanark.
Mother's maiden name Gunn or unknown (rules out the ones where
mother's maiden name is not Gunn)
Birth date 1906 +/- 5 (assumes she was born within 15 years of parents
marriage but after 1901 census)
Searched between 1901 and 1965 (I chose 1965 to get max 25
results for the credit although in all probability she died before 1947 when Annie died)
Ruling out those with "other surnames", ie married, that leaves 14.
A surprising number of them died in infancy.
There are a couple that I'd like to try, maybe you will.
1909 died in infancy Hutchesontown Nope - that was my banker!
1903 died in infancy Holytown (A bit far away but name is Agnes Donald McDonald) Nope
There are a couple in Bridgeton / Dennistoun Not these either
Off course, all this is very dependent on my original assumption that Agnes is the child of Dolina and Robert.
Food for thought.
I really hope I haven't confused you and you follow my logic (if you can call it that!
Apologies to everyone else for sidetracking the thread.Dave