It could be that the 1940 chairman was NOT a Wendell Willkie backer; it took six ballots to nominate Willkie. I don’t know.
We didn’t have the same kind of primary system we have now. The party bosses controlled the process to a much greater extent.
Ryan should not be the chairman of the convention if he cannot support the presumptive nominee of the party. Trump has received a record number of votes. Ryan doesn’t seem to accept the opinion of the voters or the integrity of the process.