SS Laconia 1909

Hi, I found SS Laconia 1 from 1911 and Laconia 2. But I have a letter written my my great grand uncle and a diary written by his brother, telling that they traveled with SS Laconia in May 1909. Then there must have been Laconia before these 2. The ship went from Liverpool 4 May and arrived Boston 14 May 1909. Anybody know anything about this ship. The names of mine grans uncles and aunt: Olav Hetland, Nils Hetland and Olava Marie Hetland.