SIMBAD references

We assess the accuracy of radial velocities of 671 stars located near Galactic clusters, measured by Robert Trumpler between 1924 and 1947 using the Lick Observatory 36 inch refractor equipped with prism spectrometers and photographic plates. We find that Trumpler's velocities share the same zero-point and scale as modern IAU radial velocity standards. Their accuracy ranges from 2 to 7 km s^–1, depending on stellar brightness, based on comparisons with new Doppler measurements from the Keck telescope and data from SIMBAD. We also provide improved star identifications, B-band photometry, and notes. A link is provided to an online PDF-previously available only in print-containing all 3782 of Trumpler's stellar radial velocities and associated Julian dates. These historical data can be combined with modern measurements to form a unique century-long baseline for detecting long-period stellar companions, gravitational perturbations from passing massive objects, and accelerations due to cluster and Galactic dynamics.