Emigration listing Ingeborg Maria and Josefine Ols

Hi I'm looking for the emigration of two maybe three sisters. I have a lot of information about their family in Norway and information about their life in US, but I'm not able to find them in any list of emigrants. Their parents were Ole Pedersen and Marthe Andersdatter. First sister to leave Norway was Ingeborg Maria Olsdatter born March 14, 1859 in Modum. She was confirmated 1873 in Gran. I find her in the US census 1900 telling she left Norway 1883. The 1910 US census tells she left Norway 1882 and so does her obituary which also tells she came to Milwaukee in 1882. In 1882/83 her family in Norway lived in Eiker. Second sister to leave Norway was Josefine/Josephine Olsdatter born August 26, 1861 in Modum. She was confirmated in Eiker 1876. Then she is married june 1895 in the town(?) Norway in Benton county, Iowa. I find her in the US census 1900 telling her emigration was 1890; 1910 census say 1889; 1920 census say 1885 and 1930 census say 1889. There is also a third sister Petra born Jan 23, 1864 in Modum. She is confirmated 1878 in Eiker and found in a local Eiker census in 1891, but then I'm not able to find her anywhere. She might have emigrated, but I don't know what happened to her. She probably is dead by Nov. 1908 when her father dies, because she is not mentioned in the list of heirs. Are anyone able to find their emigration? The list entry and voyage is all I'm asking for this time. [:)] (I have asked about them before and got a lot of information and good help, but nothing about their emigration. Much of the information in that query is wrong, because I had wrong information when I asked. /forum/modum-bydgebok/ )