Hello
I don't have an interest in the family - but just in case you don't have siblings, attached are the ones which show on the IGI.
WILLIAM ADDISON B: 02 AUG 1789 Drumlithie, Kincardine, Scotland
ELIZABETH ADDISON B: 15 JUN 1794 Drumlithie, Kincardine, Scotland
JOHN ADDISON B: 22 SEP 1796 Drumlithie, Kincardine, Scotland
RACHEL ADDISON B: 22 SEP 1796 Drumlithie, Kincardine, Scotland
JAMES ADDISON B: 19 OCT 1799 Drumlithie, Kincardine, Scotland
ANN ADDISON Bi: 26 FEB 1798 Drumlithie, Kincardine, Scotland
A search of Scotlands People, Scotlandwide 1780 to 1800 only brings up 1 marriage for a couple of that name.
10/08/1788 ADDISON JOHN RACHEL GIBSON/ M MONTROSE /ANGUS 312/00 0070 0214
Regards, Steve