Hi Marilyn,
The IGI lists the following children for your couples:
Malcolm Fisher/Margaret Campbell
1. JOHN FISHER - International Genealogical Index
Gender: Male Christening: 14 NOV 1697 Kenmore, Perth, Scotland
2. ALEXANDER FISHER - International Genealogical Index
Gender: Male Christening: 21 APR 1695 Kenmore, Perth, Scotland
John Fisher/Katrin McDugal
1. JANET FISHER - International Genealogical Index
Gender: Female Christening: 13 FEB 1722 Kenmore, Perth, Scotland
Duncan Fisher/Margaret Galloway
1. JANET FISHER - International Genealogical Index
Gender: Female Christening: 06 JUN 1763 Kenmore, Perth, Scotland
2. JOHN FISHER - International Genealogical Index
Gender: Male Christening: 04 MAR 1770 Killin, Perth, Scotland
3. KATHARINE FISHER - International Genealogical Index
Gender: Female Christening: 30 APR 1780 Killin, Perth, Scotland
4. PETER FISHER - International Genealogical Index
Gender: Male Christening: 08 SEP 1776 Killin, Perth, Scotland
Peter Fisher/Mary Anderson
No children listed
Hope this helps
Regards
Kelly