I checked the 1900 census and found the following on Gollick:
Wisconsin, Green, Jordan, District 123 Family #147 Golickson, Golick Oct 1869 30 married 1 year WI NOR NOR Farmer Anna Oct 1863 36 1 child born 1 living WI NOR NOR Arthur G. Jul 1899 WI ELLINGSON, Golick Father Dec 1828 71 married 42 yrs.NOR NOR NOR Immigrated 1869 In US for 31 yrs. Naturalized Christy Mother Dec 1831 68 14 born 7 living
Ole is living with Family #156...one page away from Golick.
I found Golick in the 1880 census with his family as follows:(note the spelling discrepancy)
Wisconsin, Green, Jordan, ED 139 (Page 2) Ellenson, Gulac 52 farmer NOR NOR NOR Chrestine 52 Keeping house NOR NOR NOR Ellaf 18 NOR Ole 13 NOR Gulac 10 WI Cereline 9 WI Albert 7 WI
Ole and his family are on Page 10.
I also found them in the 1870 census with his family as follows:
Wisconsin, Green, Jordan Page 7 Ellingson, Golick 43 Farm Labor PP Value $100 NOR Christina 34 Norway Joran 18 NOR Ellen 16 NOR Edward 12 NOR Ole 5 NOR Golick 7/12 (Oct) WI
Ole and his family are on Page 5
I do believe you are on the right path regarding a relationship.Families tended to settle in clusters so it was NO accident that these two Ellingson men decided to live so close to one another.