Marianne Henriksdatter

My grandmother Marianne Henriksdatter was born in 1872 in Trondenes her father was Henrik Lukessen. She emmigrated to America in either 1893 or 94 with with brother Lukas. We've been told that Lukas was diagnosed with TB at some point and went back to Norway. I would love to know how and when she left Norway and what happened to her brother. We also have a information going back quite a few years on her sideof the family, but I'm having trouble determining if it's on her mothers or fathers side.