Chisaki Shimazu and Chisaki Hosoka - same person?
Both names were credited for the first time last year under music:
Chisaki Shimazu
Super Mario Bros. Wonder - Music
Chisaki Hosoka
Mario Kart 8 Deluxe- Booster Course Pass - Music
The former has a VGMDb page. It's somewhat unlikely that Nintendo would hire two composers with the same first name so close to each other. On the other hand, the likelihood of them getting married within such a short timeframe between credits isn't that high either.