Thanks for that helpful diagram. I guess we have

Congregation

Pastor

Deacons

Property cttee And I guess they are answerable to the trustees too. We are planning to make the deacons trustees. The minster can't, at present, be a trustee and receive a salary under English charity law
Missionary cttee
Sunday school (I don't even think a deacon is on this one)

Congregation (Hey, isn't that circular? Yes it is, but I never said I was a congregationalist!)