This data package supports scientific results described in "Constraints on the Slip Distribution of the 1938 MW 8.3 Alaska Peninsula Earthquake from Tsunami Modeling" by Freymueller et al., in Geophysical Research Letters. The dataset contains files with digitized and time-corrected marigrams, files with discretized slip distributions, files with gridded 3D surface displacements from the models, and the numerical values for the predicted tsunami time series presented in the paper. We also provide files with the outlines of the slip zones for the models.