Federal Reserve Bank of Dallas. "[All Federal Reserve Banks and Branches Will Observe Daylight Saving Time From 4-28-68 to 10-27-68], Circular No. 68-105,"
District Notices (Federal Reserve Bank of Dallas)
(April 26, 1968).
https://fraser.stlouisfed.org/title/5569/item/543813, accessed on March 2, 2025.
@FedFRASER