I searched the marriage records for Chaves County as well as death records. Mr. Lewis did not marry Dorothy Goddard here in Roswell not did he pass away here.
Since Dorothy's youngest child was born in Oklahoma I would start looking there for a marriage.
Without an exact date of death it is hard to find out anything about him, do you hae a date of birth??
I searched for Dorothy's marriage to Shorty Langley, did not occur here either.