It turns out that she Googled herself and all she found was a series of references to that other Erica Dunham. The one from the industrial rock band Utter Null.
Even when she Googled "Erica Dunham" + London, England she still didn't find anything that related specifically to her.
It seems a shame to me that someone as cool as her would not have single reference to her on the entire world wide web.
And now here it is. A blog post about Erica Dunham of Ann Arbor, Michigan and London, England. Complete with a photo of her from Detroit Synergy's Shop Detroit event back in December of 2005.
Welcome to the Googleverse, Erica!