Ben,
Do not find any Lewellings listed as having filed
for a pension in Miss; possibly these will help:

Elizabeth Lewelyen, w/o Green Lewelyen, unit not
given; filed Benton County in 1910.

J.H. Lewellen, 2nd Miss Inf; file date not given
but resided in Prentiss County.

Lewis Lewellen, 31st Miss Inf; filed Lee County
in 1905.