The original arrest records and trial records of Caleb Hughes would state what his address was at the time. The Washington Post covered this crime in great detail and very likely mentioned his address at some point. Another great source document for where persons resided was the now archaic and obsolete Phone Directory. They came out every year and if you had a phone, you were in it unless you paid extra for an "unlisted number". Some public libraries have old phone directories and city directories on file.