  Proper motions with values >10 mas/yr or <-10 mas/yr have been extracted from
the USNO-B1.0 and Tycho II catalogues for all Lanning UV-bright sources
identified in the Sandage Two-color Survey of the Galactic Plane and presented
in Papers I-VI. Of the 572 sources examined, we find at least 213 which exhibit
a significantly large proper motion. Based on the location of the sources in a
reduced proper motion diagram, we demonstrate that about two thirds of the high
proper motion sources are likely or very likely to be heretofore unidentified
white dwarfs.
