  We produce several public void catalogs using a volume-limited subsample of
the Sloan Digital Sky Survey Data Release 7 (SDSS DR7). Using new
implementations of three different void-finding algorithms, VoidFinder and two
ZOBOV-based algorithms (VIDE and REVOLVER), we identify 1163, 531, and 518
cosmic voids with radii >10 Mpc/h, respectively, out to a redshift of z = 0.114
assuming a Planck 2018 cosmology, and 1184, 535, and 519 cosmic voids assuming
a WMAP5 cosmology. We compute effective radii and centers for all voids and
find none with an effective radius >54 Mpc/h. The median void effective radius
is 15-19 Mpc/h for all three algorithms. We extract and discuss several
properties of the void populations, including radial density profiles, the
volume fraction of the catalog contained within voids, and the fraction of
galaxies contained within voids. Using 64 mock galaxy catalogs created from the
Horizon Run 4 N-body simulation, we compare simulated and observed void
properties and find good agreement between the SDSS DR7 and mock catalog
results.
