I think your best bet in this case is to search Burns' at
www.smartpages.com in the cities you named. Don't be bashful, just give them a call and say who you're trying to reach.
I'd think, though, that Christopher making the call might be more productive than you making it and saying you're calling for him.
Much of my genealogical searching is for living cousins, so I go through this alot. You just call and be honest. It's been my experience that if they don't know who you're looking for, they'll tell you flat out. Some will know, but not be interested in hearing from him, but typically can tell from what they say if this is the case or not.