Richard Williams also used these data for a paper in The Stata Journal.  For more, see http://www.nd.edu/~rwilliam/oglm/index.html
The original OCG II data are available from ICPSR at http://www.icpsr.umich.edu/icpsrweb/ICPSR/studies/06162
This is a modified version/extract of the OCG II data. For the original paper using these data, see Hauser, Robert M. and Megan Andrew.  2006.  Another Look at the Stratification of Educational Transitions: The Logistic Response Model with Partial Proportionality Constraints.  Sociological Methodology 36(1):1-26.