Hi Frances ,

Have found his birth in Alford Sco through his brother John :

John Bruce ch 13/3/1774 Alford Aberdeenshire
Scotland .

William Bruce ch 30/6/1776 Alford ,Aberdeen , Scotland .

Their father was John , no detail on their mother . But I have a cousin in scotland who may be able to get more detail for me .

There are still a lot of possibilites for Margaret .

William and Margaret appear to have had twins , William and John ch November 1803 in Malew .