This is a site containing the dates of birth of all descendants (and their partners) of Logan and Ysabel Bruce. At last count there were 8 children (ranging in age from 66 down to 50), 25 grandchildren (from 39 down to 12), 7 great-grandchildren and 15 partners.
The full list in its resplendant glory can be seen at http://birthdaylist.wordpress.com.