I have from the IGI some births that look like the same person in 2 different places - same parents Alexander Kerr/Agnes Morrison - same date.
ALEXANDER KERR - International Genealogical Index
Gender: Male Birth: 02 JAN 1846 Inveresk, Midlothian, Scotland
2. ALEXANDER MCDONALD SANDERSON KERR - International Genealogical Index
Gender: Male Birth: 02 JAN 1846 Bothkennar, Stirling, Scotland
*****
Then under batch no.8507090
these (same parents)
JOHN KERR - International Genealogical Index
Gender: Male Birth: 25 OCT 1834 Inveresk, Midlothian, Scotland
2. AGNES KERR - International Genealogical Index
Gender: Female Birth: 05 APR 1838 Inveresk, Midlothian, Scotland
3. ALEXANDER KERR - International Genealogical Index
Gender: Male Birth: 02 JAN 1846 Inveresk, Midlothian, Scotland
4. THOMAS KERR - International Genealogical Index
Gender: Male Birth: 18 FEB 1841 Lasswade, Midlothian, Scotland
5. ARCHIBALD KERR - International Genealogical Index
Gender: Male Birth: 20 APR 1850 Bothkennar, Stirling, Scotland
6. JAMES KERR - International Genealogical Index
Gender: Male Birth: 19 FEB 1848 Grangemouth, Stirling, Scotland
7. WALTER KERR - International Genealogical Index
Gender: Male Birth: 1850 Grangemouth, Stirling, Scotland
The 1881 Bothkenner census gives Alexander Kerr (and correct family) born c1845 at Craighall, Edinburgh.
Can I assume that the Alexander born Inveresk is the correct entry and the Bothkenner entry was some kind of glitch