  Many short-period binary stars have distant orbiting companions that have
played a role in driving the binary components into close separation. Indirect
detection of a tertiary star is possible by measuring apparent changes in
eclipse times of eclipsing binaries as the binary orbits the common center of
mass. Here we present an analysis of the eclipse timings of 41 eclipsing
binaries observed throughout the NASA Kepler mission of long duration and
precise photometry. This subset of binaries is characterized by relatively deep
and frequent eclipses of both stellar components. We present preliminary
orbital elements for seven probable triple stars among this sample, and we
discuss apparent period changes in seven additional eclipsing binaries that may
be related to motion about a tertiary in a long period orbit. The results will
be used in ongoing investigations of the spectra and light curves of these
binaries for further evidence of the presence of third stars.
