You have found US censuses for this family? Those documents should give you at least aproximate birth years for each member of the family AND years of emigration from Norway.
Holme/Holm and Houge will not have been family names in Norway - those are likely to have been names of farms where their families lived or had history. These locations are also likely to have different spelling than you expect.
"Malloy" MIGHT be Meløy district in Nordland, Norway.
Basics to understand -
Ancestors From Norway articles (http://homepages.rootsweb.ancestry.com/~norway/articles.html
Portal to Norway research guidance of LDS Family History Library (https://wiki.familysearch.org/en/Norway