OSM tag name=Wagner Houseboat matches Wagner Houseboat in these Wikidata fields:
OSM tag alt_name=The Old Boathouse matches The Old Boathouse, in these Wikidata fields:
| Houses in Seattle | historic=manor, building=country_house |
| Houses on the National Register of Historic Places in Washington (state) | historic=manor, boundary=protected_area, building=country_house, historic |
| National Register of Historic Places in Seattle | boundary=protected_area, historic |
| Ships on the National Register of Historic Places in Washington (state) | boundary=protected_area, historic |