looking for Mothers of great grand parents

I have information on my great great grand parents Hans Kasperson Born 1822-24 in Molden Flatla, He married Ingebor Pedersdatter in 1843 in Hvalebejej. We have a Father listed as Casper Christofferson for Hans and a father of Peder Iversen for Ingebor. Do you have any idea who their mothers could be? They are the parents of Ole Hansen Elvstoen passengers on the Bark Colonial 1870.