Two photos showing Navy Type 10 Carrier Fighters - Mitsubishi 1MF3 during training. Source: "KAGAYAKU KAIGUN SHASHIN CHO" (Photo Album of the Sparkling Navy) - Showa 9 (1934)

In the photo bellow we can see planes bellonging to the Yokosuka Kokutai during trainning. The "YO-511" and "YO-503" (far left and far right) are both early Type 90 Crew Trainers - Mitsubishi K3M "Pine". The a/c next to the "Yo-511" is most probably a Type 89 Carrier Attack Bomber - Mitsubishi B2M1. Source: "KAGAYAKU KAIGUN SHASHIN CHO" (Photo Album of the Sparkling Navy) - Showa 9 (1934)

In this photo from the same book, we can see again a Type 10 Carrier Fighter - Mitsubishi 1MF3 to the left and a Yokosuka Kousho (Yokosho) Type 13 Seaplane Trainer - K1Y2 to the right.

The types of the seaplanes in the photo below belonging to the Kasumigaura Kokutai are quite evasive. Any ideas are more than wellcomed. Notice that the students to the left are shawing/maintaining the fabric covered surfaces of the wings. Source: "KAGAYAKU KAIGUN SHASHIN CHO" (Photo Album of the Sparkling Navy) - Showa 9 (1934)

The photo bellow from the same book shows a Type 15 Flying Boat - Hiro Kousho (Hirosho) H1H3 belonging to the Yokosuka Kokutai.