[Pieter H]

Larry,

Concerning the events on May 10, your additional data leads to the following conclusions:
B3+AS (St.Kap Stadelmayer) Adegem-Maldegem
B3+BS (Reinhardt) Merendree
B3+DS (Zenner) Hulste

Then, because you state the B3+KS came down close to an airfield
B3+KS (Riedesel) Ruiselede-Wevelgem
As you know Wevelgem was a large airfield, mainly used for training. Other sources also state this a/c came down close to Wevelgem.

Since you state that the aircraft of vogel was not the +GS, then by elimination:
B3+GS (Jansen) Morkhoven

Which then leaves us with the only one we don't know yet:
B3+?S (Vogel) Sluis (NL)

Does this make sense?

Regards, Pieter