My 2nd Great Grandfather was David Esaias Davidsen, b. 1883 in Norway, son of David Anders Davidsen, b. 1857 & Emma Christine Larsdatter, b. 1849.
He immigrated in 1904 to New York from Norway. His wife was Sigrid Hansine Tomassen Saether, b. 1885.
He had many brothers and sisters. His brother Martin Nordgren Davidsen, b. 1877, came to Boston from Norway in 1912. He had married Petra Ovidia Olsdatter in 1902 prior to coming and he came to Boston alone. She came later but was never able to find him.
It was said that Martin died when crossing the Atlantic, but this is not true as he is documented as having arrived. Whatever the reason, we have been unable to find where he went and if he possibly had started another family maybe thinking Petra would not be arriving.
I am not sure if this rings any bells. It's quite possible that Martin did start another family in Boston.