There is a long account here of the raid:
https://www.warhistoryonline.com/gue...rue-story.html
In this account the two seaplanes had just landed and the Emily (Kawanishi H8K) was bringing in reinforcements. The 2nd plane (a float plane) is given as a "Dave" Nakajima E8N. (Others accounts say that 2nd plane as a Rufe, Nakajima A6M2-N.)