The ancestry report uses 'Ahnentafel' numbering. This means that the numbers for a person's parents will be twice as large as that person's number. For example, if a woman's number is 15, her father will be number 30, and her mother will be 31. Her child will be number 7.
This web site produced 2005 by
Günther Fuhrmann , using the Programm
PAF 4, all copyrights to the author
Contact: 
GuentherFuhrmann@gmx.net