We have paired the Large Area Survey of the UKIRT Infrared Deep Sky Survey with the Sloan Digital Sky Survey to identify cool white dwarf candidates, from their photometry and astrometry. We recovered previously known very cool white dwarfs and have obtained optical spectroscopy for other candidates using the GMOS spectrographs on both Gemini North and South. Data obtained for an initial sample of seven objects confirmed all to be previously unknown white dwarfs. Model analysis of the photometry and available spectroscopy shows that these seven white dwarfs have effective temperatures in the range Teff = 5400-6600 K. Our analysis of one previously known white dwarf confirms that it is cool, with Teff = 3800 K. The cooling age for this dwarf is 8.7 Gyr, while that of the ~6000 K white dwarfs is 1.8-3.6 Gyr. We are unable to determine the masses of the white dwarfs from the existing data, and therefore we cannot constrain the total ages of the white dwarfs. The large cooling age for the coolest white dwarf in the sample, combined with its low estimated tangential velocity, suggests that it is an old member of the thin disk, or a member of the thick disk of the Galaxy, with an age 10-11 Gyr. The warmer white dwarfs appear to have velocities typical of the thick disk or even halo; these may be very old remnants of low-mass stars, or they may be relatively young thin disk objects with unusually high space motion.