I exchanged emails with someone who was researching this family in the past year.I am looking for Lewis Tweedy, merchant,who died in same county as Robert & other Tweedys who were living in Arkansas. I have info on Lewis prior his death. (I am doing this off the top of my head so I cannot give exact dates, etc) Tweedy is not common name so to have two different families in the same county would be unusual.
I found your query in "Saga of Southern Illinois" and was going to write you a letter before I found this email address.
Please contact me.I am descendant of Tweedy family out of Cumberland County, Ky thru Indiana and to Missouri 1893. PAT SHIVELY ELMORE