Researched and compiled by Thomas B. Bruce, former webmaster for Family of Bruce. Many thanks for his tremendous work on this.
Thomas has continued his work on House of Bruce lineages and has a website that may be of interest for genealogy purposes:
There are a few Bruce genealogy books that have been printed over the years with lineages. They may be available through your local library or the inter-library loan program. Some of these books are international and may be very hard to find.