Anna Gulbransdatter/Johannes Olsen Strom

Strom/Kvam Surnames, Estimated yr. of birth 1836-37. Johannes Olsen Strom b. 1837, emmigrated to Minnesota (Six-Mile Grove), wife Anna Gulbransdatter. Christina Kvam, born Jan. 7, 1873 to Erick & Eli (Brenness) Kvam. Johannes & Anna are my great-grandparents, Christina is my grandmother. [:)] I would love to know about where these people came from .