The same as the previous request, what is missing is the link to the Wikipedia engraved page on the coin page like this one. And it’s currently not the case.
If the name appears as an auto-complete suggestion when you fill in the engraver field, then it's in the database. And these particular two were already in the database, including links to Wikipedia and wikidata IDs.
However, the links are clickable only if there is a description. And descriptions are time-consuming and not a priority right now... But I've added them for the two you've requested, so the link is also clickable now.