Greetings, I'm the 5th great grand son of Samuel Carrington (1754-1818) and of the Indiana line of Thomas 1782.. I believe that you are correct in this lineage of Timothy. I'm in London England now until the 27th of Dec and will look at the printed unpublished family genealogy when I get home. I'm very certain there is a Robery connection in the Maryland Carringtons... seems like it might be a Mary Robery, just thinking off the top of my head.