Our presentation shows how Wikimedia tools and federated dataspace design can reconnect dispersed heritage of small communities, such as the Livonians, Võros, Setos, and Maris. We introduce the Wikimuseum exhibition model and the Finno-Ugric Data Sharing Space (FUDSS), both designed to combine encyclopedic, archival, museum, and private collections into multilingual, interoperable cultural knowledge graphs.