B. Gathering foot-- Increase top tension to increase gathers.
C. Edgestitch foot--For joining edges of fabric or laces together
E. Adjustable wide hemmer
F. Narrow hemmer
The others are correct. The black ones have a special name: "blackside"; they were made during WWII when other metals were dedicated to the war effort. They are quite collectible and worth more than the shiny attachments. There are some good demos on YouTube showing how to use all of these.
I hope this is helpful.
Pat