The IGI has Andrew Wallace m Margaret Paterson
03 APR 1824 Aberdour, Fife, Scotland - which is about 3 miles from Dalgety.
There are a number of children born to this couple - check batch no C114224
If this is your family, Robert is listed as born
20 FEB 1836 Dalgety, Fife, Scotland
Pleased to see there is a Grizel in the family - My Fife family have a number of them - I hadn't seen the name before - I gather it was often changed to Grace.
No sign of Andrew's birth in the Dalgety batch - perhaps he was christened in a nearby parish. There are a number of extracted entries 1802-1807 in nearby parishes.
There is a marriage for a Robert Wallace in the Kent marriage index for 1862
http://extranet3.kent.gov.uk/sp/rois/marriagesearch.cfmThis index doesn't provide the spouse name - or allow a lookup without a surname.
Trish