The measures needed for the linen (and wool) frock coat are as follows:
Chest measure taken over waistcoat
Waist measure taken over same waistcoat
Belly measure – ditto
distance from the top of the shoulder to the natural waist, and to the top of the knee
length of the arm from the shoulder joint to the elbow, and to the wrist bone
Neck measure over shirt and stock/neck cloth
I advise all attendees to get themselves measured (even if Henry has your measures, you may have changed shape since the heavy dining season from advent to Epiphany), and send same to Mr Cooke at your first convenience.
Mr Cooke indicated also that he will have a multitude of patterns brought to the workshop in case there are some that are of disorganized mind, unable to get cloth or measures in good time.