I am not researching Greenwoods but I do happen to have a copy of a book called "Six Months from Tennessee," by Skipper Steely, "A story of the many pioneers of Miller County, Arkansas, based upon the life of Claiborne Wright, the most dominant of those who dared to settle in what would become Southeast Oklahoma and Northeast Texas. (My ancestor Joseph Ladd was also there.) Perhaps the following from the book will be of help to you. Janet

p50 "Finally, Stevenson writes that just a few months before his letter to the Gazette, Caleb Greenwood and two companions were fired upon at night, while in camp, by a band of Indians. 'A ball passed through Greenwood's shirt collar, without doing him any injury,' writes Stevenson. The three excaped to the woods, leaving their furs, clothing and other utensils to the Indians. But, they were alive!" [Footnote: Arkansas Gazette, February 18, 1820, 3:1. ...Dr. Strickland says Greenwood left the Red River area before July, 1825. He relates that in 1844 Caleb Greenwood appeared at Sutter's Fort in California, accompanied by two sons, John and Britton. Greenwood is last noted in 1846 at Lake County, California, in his eighty-third year."]

p50 "William Mabbit continues to travel northeast of Pecan Point to his salt works near what was to become the Clearcreek Road from Washington, Arkansas to Cantonment Towson...Henry B. Greenwood, father of Caleb, brought his family, acquiring land also opposite the Kiamichi River." [Footnote: Strickland, Anglo-American Activities, 69. John Robbins later purchased the Greenwood place near Jonesborough (Juansburg)."

Additionally, on a map on another page of those living by the Red River, noted are the names of Caleb, John, Henry and Joel Greenwood and the dates of 1817 for all of them.