The attached image shows the Ivernia with a Liverpool to Boston route with a date of 29 Mar 1910, which I assume is the date the ship left from Liverpool.
From the "Book Indexes to Boston Passenger Lists, 1899-1940" database in Ancestry, image 91 of 706.
Roll Description: (037) Mar· 29, 1910-May 19, 1910
Ancestry.com. Book Indexes to Boston Passenger Lists, 1899-1940 [database on-line]. Provo, UT, USA: Ancestry.com Operations, Inc., 2010.
Original data: Book Indexes to Boston Passenger Lists, 1899-1940. Microfilm, T790, 107 rolls. Records of the Immigration and Naturalization Service, Record Group 85. National Archives, Washington, D.C.
Oakland FamilySearch Library