Help, last chanse!

I have been looking for Anders Nicolas Petersen Ljungkvist for quite some time now and are just to give up! Anders Nicolas Petersen Ljungkvist, born Apr.19.1866 in Skalmeja, Skaraborg Sweden. Married in Norway 1892 to Anna Karoline Andersen Haug. They got four children and they lived in Kristiania Norway.. He immigratet to Amerika as a norwegian : Citing this Record: "New York, Passenger Arrival Lists (Ellis Island), 1892-1924," index, FamilySearch (https://familysearch.org/ark:/61903/1:1:JF2N-LZN : accessed 29 April 2015), A. Ljungquist, 16 Sep 1902; citing departure port Glasgow, arrival port New York, ship name Laurentian, NARA microfilm publication T715 and M237 (Washington D.C.: National Archives and Records Administration, n.d.). That is the last we know of him! His Family never heard from him again. I have searched all US Census in every state from 1900-1920. I have searched on Familysearch, Cindys list, My Herritage, Brooklyn lost & found, NO LUCK! Maybe somone can help me before I give up! He had a name that could vary a lot, Ljungkvist, Ljungqvist, Ljungquist. Anders, Andrew. and his middle name Niklas, Nicolaus, Nic and may more. Not easy!