Per Dr. Phillip Smith: Here are the thread counts for the two tartans
W: white LB : blue B: blue K: black

Clark / Clergy

W6 / LB 6
B32 / B32
W4 / LB 4
B12 / B12
W4 / LB4
K28 / K28
B28 / B28
W4 / LB4
B6 / B6