I've been trying to find evidence that my great grandfather William Henry Robinson immigrated through Ellis Island. Today I found out why that has been so difficult, he did not go through Ellis Island. He immigrated through Boston on the S.S. Arabic, leaving June 22, 1906 from Liverpool and arriving June 30, 1906. Below is a picture of the ship from around that time period, the page from the passenger manifest with William Henry and my great grandmother Annie Lomas, and a picture of the couple later in America. Each adult paid 15 pounds 15 shillings and 6 pence for travel and their one year old daughter paid 3 lbs 15 shillings. These prices make clear what I already assumed, that they traveled 3rd class.
The ship was owned by White Star Lines, the same as the Titanic, and was later sunk in 1915 by a German U-Boat.
