  We compare estimates of the speed and width of coronal mass ejections (CMEs)
in several catalogs for the CMEs associated with ~200 solar energetic particle
(SEP) events in 2006-2013 that included 25 MeV protons. The catalogs used are:
CDAW, CACTUS, SEEDS and CORIMP, all derived from observations by the LASCO
coronagraphs on the SOHO spacecraft, the CACTUS catalog derived from the COR2
coronagraphs on the STEREO-A and -B spacecraft, and the DONKI catalog, which
uses observations from SOHO and the STEREO spacecraft. We illustrate how, for
this set of events, CME parameters can differ considerably in each catalog. The
well-known correlation between CME speed and proton event intensity is shown to
be similar for most catalogs, but this is largely because it is determined by a
few large particle events associated with fast CMEs, and small events
associated with slow CMEs. Intermediate particle events "shuffle" in position
when speeds from different catalogs are used. Quadrature spacecraft CME speeds
do not improve the correlation. CME widths also vary widely between catalogs,
and are influenced by plane of the sky projection and how the width is inferred
from the coronagraph images. The high degree of association (~50%) between the
25 MeV proton events and "full halo" (360 deg.-width) CMEs as defined in the
CDAW catalog is removed when other catalogs are considered. Using CME
parameters from the quadrature spacecraft, the SEP intensity is correlated with
CME width, which is also correlated with CME speed.
