tidealmanac
No predictions loaded for 1993. This site serves NOAA predictions from its own store, and this period has not been fetched for Myrtle Beach Airport yet. Nothing is estimated or interpolated in its place. NOAA's own page for the station has the official table: tidesandcurrents.noaa.gov.

tidealmanac.site/us/sc/myrtle-beach-airport-8660401/1993

Myrtle Beach Airport, SC tide table 1993 (printable) · Tide Almanac