Packard 56 Terminals?
The females Chrysler terminals have rolled sides while the Packard 56 have a leaf spring.
Terminals in the connector reverse light switch on my '67
A slightly different version on the right below - I think from the headlight switch connector.
Some currently available alternatives that are similar to the orignal Chrysler terminals shown below.
Packard 56 style. This is from the heater fan switch connector on my '67.
So Chrysler did use this style, at least occassionally.
One issue is that the plastic connector housings don't always interchange well between the two styles.
Sources for Chrysler type wire terminals