Identification element in shape map

[Anonymous]

I have this json file with I can make this map.

For make, this map I has to transform this geojson map to topojson with this web.

The problem is how can I a relation between the division map and a table with the name and other parameters. The last column "Custom" is the official name of this administration division

In json file I can't see some identification to correlation the table with the map. 

[lbendlin · Accepted solution]

Do the conversion again, use a tool that does not strip the attributes from the geojson.  Mapshaper.org is a good tool to use.