I have nothing on Looker/loker connection to a Norwegion source that would meet research standards. Have read some theories that have the Loker/Looker in the garmet trade in Belgium migrating to England in the 16th or 17th century. This group settled Sussex and Middlesex counties in England with certain members migrating to America in the mid 17TH century with we suspect was with the Winthorp fleet. There are a lot of Loker, & Looker migrants in the North East. Loken is not a name I have come across in research but I have no reason to discount there presents.