Feeder Ship to Boston 1907

On Digitalarkivet I have an Alick Ericsen leaving Norway to Boston on 11 May 1907. I have ordered the relevant ship lists from LDS and I am having trouble finding him. I also have been unable to find him on the 1910 census in America but have him in Duluth in 1930. As it states on Digitalarkivet that he was going to Boston on "Oslo" would that mean that he went directly to Boston or would there have been a feeder ship involved, and if so where might I be able to find out the name of that Feeder ship. Would the feeder ship have left straight away or could it have been days or weeks later? I realise this is perhaps not the correct topic to use but it was the best I could come up with. Sorry. Thank you in advance for your help.[:)]