Helen Brann also reps Maya Angelou.
I think it's relatively uncommon for agents who are seeking new clients to have no website of any kind these days (even if just a page with contact info, which I've seen on occasion). I imagine that Ms. Brann falls into the category of those who aren't. Google and you'll find contact info, which I won't post here because I really don't think she's seeking queries, but you never know. My agent is also one with no website, and who wasn't and isn't open to queries, so who am I to say?