H.G. Wells believes she is "Emily Hannah Lake" and owns a cat named "Dickens" - an obvious play on the fact that Charles Dickens and H.G. Wells are both giants in literature. Also, the letters from "Emily Hannah Lake" can be rearranged to spell out "Hail Myka n Helena" referring to "Myka" and "Helena" from the series.
When Pete and Myka travel to Cheyenne, Wyoming, the actual town shown is Ferndale, California. The same shot was used in the movie "Joe Dirt" when Joe first sees Silvertown (although some of the grass was altered in Warehouse 13, making it brown instead of vibrant green).
Whaen Claudia is reading data obtained from Steve's lighter he says "Keep the faith". When he says that there are tears digitally added to her eyes.