Marine sediment core EW0408-33JC (57.162°N, 135.357°W, 146 m water depth) was recovered from Katlian Bay, a temperate fjord near Sitka, Alaska, in August 2004. EW0408-33JC is the jumbo piston core collected from the same site as EW0408-32MC, which was described in Addison et al. (2013, doi:10.1002/jgrc.20243). This data release describes the age control points for the most recent 2,000 years of EW0408-33JC, as established by a combination of radiometric 137Cs and excess 210Pb (Addison et al. (2013, doi:10.1002/jgrc.20243)), and five accelerator mass spectrometry (AMS) 14C samples. After calibrating these AMS 14C samples using the INTCAL20 curve (Reimer et al., 2020, doi:10.1017/RDC.2020.41) in CALIB 8.20 (Stuvier and Reimer, 1993, doi:10.1017/S0033822200013904) to calendar ages, the full set of geochronology data was input into the R software program (R Core Team, 2021; https://www.R-project.org) package CLAM (v. 2.6.1; Blaauw et al., 2010, doi:10.1016/j.quageo.2010.01.002) to generate a composite age-depth model for EW0408-33JC data. The composite depth scale was established using Geotek multi-sensor core logger (MSCL) data and linescan imagery to align EW0408-32MC, EW0408-33JC, and the trigger core for the jumbo piston core system EW0408-33TC. The MSCL data (gamma-ray wet bulk density and whole-round magnetic susceptibility) and linescans showed that EW0408-32MC recovered the sediment-water interface (see Addison et al. (2013, doi:10.1002/jgrc.20243) for more details), and that a shift of +0.33 m was needed to align EW0408-33TC with the datum of -32MC, and a shift of +0.54 m was required to align EW0408-33JC; together, these alignments permitted the generation of a continuous composite depth scale from 0 m (= sediment-water interface) to 5.53 m bsf (below sea floor), which is the composite depth horizon associated with 2000 calendar years ago.