Scandinavia, WI Olsen/Olson Arkaas Arkaasa Arkose

Total newbies to geneaology are curious to learn if there is a way to determine the names of all children/grandchildren born to this "Olson/Olsen"~"Arkaas/Arkaasa/Arkose" family, originally from Sandsvaer, Norway. I've only located one birth certificate ONLINE which might be connected, it is to yet another spelling, Akasa - a Carl Arkasa born in the same county - namely, Waupaca, Wisconsin. We've found one translation for the surname to English, which would be 'arcade,' but are curious if the surname Arkaas/Arkaasa actually relates to something in Norway, say, a farm or small village, or perhaps something arctic, as in that first syllable 'ARK' -- like the word "arktos." Is there any way to figure this out online, the descendants, without undue expense - or would something like this require a trip to the town of Scandinavia, Wisconsin to hopefully check church registries of births, presuming such even exists, or would it mandate hiring a professional? Also... surely with all those "Olsens/Olsons" (apparently surnames) -- it would be nigh impossible to trace anything further in Norwegian records, right? Or is this actually feasible nowadays? INDIAN LAND Ola Olson Arkaas from Sandavaer & w Sigrid, - also son Knut O. Arkaas and wife. Jonette Iverson from Trondhjem, and Arne O. Arkaas (1837-92) & w Guri Riste. ... http://www.mainstreet-marketplace.com/Indianland.htm   ( - 471k) scan.txt ARKOSE   Arne C.     1837   1892   II     1     Veteran Civil War ARKOSE         Jonetta         1844   1886   II     33 ARKOSE         Knut O.         1835   1890   II     33 ARKOSE         Sophia Olson   1869   1892   II     33 http://ftp.rootsweb.com/pub/usgenweb/wi/waupaca/cemeteries/scan.txt Vesterheim Civil War records ARKAASA, Arne From Sandsvaer, Norway. Born 12 Aug 1837. Civil War: Corporal. Post war: Died 30 May (?) 1892 in Scandinavia, Wisconsin. Stone reading "Arkose, Arne O. 1837-1892" is in Scandinavia Lutheran Cemetery Sect. II Row 1, Waupaca County, Wisconsin. Sources: (Ulvestad p262) (KJR) (Wisconsin Cemetery Records) (USGenWeb Archives by Geraldine Trinrud [email hidden]) "Arkose, Arne" http://vesterheim.org/CivilWar/db/a/ark/index.html OLSEN, Arne From Sandsvær, Norway. Civil War: Private. Post war: Died in Scandinavia, Wisconsin (before 1907). Sources: (Ulvestad p315) http://vesterheim.org/CivilWar/db/o/ols/007601.html