Due to copyright restrictions, Appendix B cannot be reproduced here.
It can be found in:
Hershberg, Theodore, Occupational Classification , Historical Methods Newsletter, 9:2/3 (1976:Mar./June) p.59

H1 .H525 Koerner Library Stacks

It is also available electronically:

http://pao.chadwyck.com/articles/displayItem.do?QueryType=articles&QueryIndex=journal&ResultsID=136EA9178D31D9ADAD&ItemNumber=2&BackTo=journalid&BackToParam=QueryType=journals|ItemID=h347|issue=9:2/3%20%281976:Mar./June%29&journalID=h347

(25 May 2012)