I would like to propose a change to the database to account for Kansas City, Missouri, USA as having not observed DST between 1946 - 1965.
Please see the source book referenced in the link (page 87 in the actual printed pages, standard PDF is the best way to view it):
I can also confirm the accuracy of at least this piece of information through testimony. What are the procedures for formally proposing, reviewing & accepting/rejecting such changes?