86 Didge Diplomat water pump error

I recently took out the water pump on my 1986 Dodge Diplomat SE / V8.
The replacement went well
except
having had a "senior moment"
the plates that hold the power steering pump
and the air pump (?)
got dropped and I don't know the order.
1st- a triangular plate
2nd- an oblong plate with an indented side ( 2 holes) and a smoth side (3 holes).

What is the "right" way to put these plates back on to secure the water pump and the other parts?

Don't have a picture yet.