Antti Antinp Koski (b. 30 Nov 1863) was my great-grandfather. He married Johanna Alissa Antintytar Merilainen (b. 1876?) on 11 Aug 1891 in Halsua (info from the Hiski Project). I am trying to find more information on any relatives of either of these people that remained in Finland. Antti immigrated to US about1892 and Johanna and their daughter Hilda immigrated to US in 1896. Am specifically trying to find records of their parents and /or siblings. Any help is appreciated.