In that same section of Wikipedia it states, "This article needs additional citations for verification." So, basically, someone made that claim about Gerald Massey and could not back it up.
Massey could read several languages (English, French, Latin, Greek and Egyptian).
In the introduction to his book "The Natural Genesis" Massey wrote, "The writer (Massey) has taken the precaution all through the (the book) of getting his fundamental facts in Egyptology verified by one of the foremost of living authorities, Dr. Samuel Birch..." and later "...although I am able to read hieroglyphics, nothing offered to you is based on my translation. I work too warily for that! The transcription and literal renderings of the hieroglyphic texts herein employed are by scholars of indisputable authority. There is no loophole of escape that way."
So while it is easy to make claims on Wikipedia, you do have to admit that anyone who takes the pains to ensure that the work he is producing relies on the foremost Egyptologists of his day is certainly not going to get away with much. The "foremost living authorities" would hardly let their names be associated with something that is fallacious.