  We present the results of 938 speckle measures of double stars and suspected
double stars drawn mainly from the Hipparcos Catalogue, as well as 208
observations where no companion was noted. One hundred fourteen pairs have been
resolved for the first time. The data were obtained during four observing runs
in 2014 using the Differential Speckle Survey Instrument (DSSI) at Lowell
Observatory's Discovery Channel Telescope. The measurement precision obtained
when comparing to ephemeris positions of binaries with very well-known orbits
is generally less than 2 mas in separation and 0.5 degrees in position angle.
Differential photometry is found to have internal precision of approximately
0.1 magnitudes and to be in very good agreement with Hipparcos measures in
cases where the comparison is most relevant. We also estimate the detection
limit in the cases where no companion was found. Visual orbital elements are
derived for 6 systems.
