Ships going to Quebec April 1850 from Eastern Norw

For many years, I have been trying to find out which ship my great-grandfather Nils Andersen Aasberget traveled to the USA on. He lived in Furnes Parish, Ringsaker, Hedmark, and emigrated in April 1854. I have discussed possibilities on this forum several times during the past years. Until today, I thought he had probably traveled to New Orleans or Galveston, then up the Mississippi to Wisconsin or Iowa. Today, a document turned up to indicate that Nils had traveled the normal route through Quebec. https://www.digitalarkivet.no/view/22/pe00000000255488 He had visited the minister on April 18, 1854 https://www.digitalarkivet.no/view/291/pu00000000009050 It is my guess that he traveled together with another family from Furnes, Jens Mikkelsen and Kari Eriksdatter Strammerud https://www.digitalarkivet.no/view/22/pe00000000255495 On your website there are very few passenger lists for 1854, and there are no departures that match the departure dates for the passports issued to these emigrants, on April 26 and 27 respectively. My question is whether it is possible to determine what ship Nils probably departed on. I would also like to ask if passenger lists exist for other ships listed for 1854, that haven't been transcribed. Thank you for your help!