Language and dialect are fascinating. I never use "DH" in discussions because I hate it - I imagine I'm responsible for a good percentage of the occurrences of "my husband" in here.
In spoken conversation when he is not present, I usually use "my husband" or "my husband, firstname" and then use his first name thereafter. But this discussion has made me realize I do use "himself" sometimes if the context is already clear. That's a deep-bedded bit of dialect I wasn't fully conscious of, but in thinkin about it, I can definitely hear "herself" in my grandfather's voice, referring to my grandmother.
When he is present, it's always his first name except for introductions, which are "my husband, firstname." He often introduces me as only "firstname," which bugs me.
Out here, some roads are "the" roads, but they are named for the place they go to. IE: (made up example) The Yorkville Road. It's the road that goes to Yorkville, and has likely been called exactly that since the time when it was the one and only road that went to Yorkville. Or, alternately, some roads are named for the two communities on either end. IE: The Riceburg-Harrisville Road.