Can you tell me more about your David and Margaret Miller? When he was born or died? Her maiden name or vital dates perhaps? Concerning the David I mentioned in the 15 July 2006 entry on this thread, who married Margaret McDougal, I don't have Augusta listed as a child in fact, I don't have an Augusta Miller in my database at all. Same with Byers. Don't have any.
Could be an oversight but I checked my sources before responding here and don't find a match. Still doesn't mean they aren't related so anything further you have on this couple could help confirm that.