A newspaper article about the Denmark visit. Perhaps they went both to Copenhagen and Aarhus. Ted Sismore led both raids.
https://www.newspapers.com/clip/30895762/the_guardian/
Names mentioned in the newpaper article are S/L (Edward) Sismore, Basil Embry, Captain (Robert) Bateson, S/L Clarke, W/C (Robert Wilson) Iredale.
A movie about the Shell House raid:
https://www.journeyman.tv/film/5618