There is a publication entitled 'Between Kaiser and Führer' by Andris J. Kursietis that lists about 750 generals for the period 1919-1933. They are listed alphabetically and mention positions held from 1919-1933, and retirement dates. If you can find a copy, I think it would assist your list.
The publication is copyrighted by Kursietis, and was published by ARK Publications Co. Inc.
5727 W. Wright Street, Milwaukee Wisconsin 53210 USA. e-mail is firstname.lastname@example.org
Give ebay or www.bookfinder.com
a look and perhaps they have a copy for sale.