Born in Hopkinsville, KY on Aug 3, 1881 to Lawrence G. and Bell (Leavell) Alexander, his son Lawrence G. Jr, applied for membership in the Sons of the American Revolution in 1955 in Kentucky.He noted he was a Lt. Col. in the US Army, which he had joined in 1929.He noted his lineage as follows: Dr. Lawrence A./md. Lucille Shirley>>Dr. Lawrence G. A./md. Bell Leavell>>Lawrence Gibbons A (b. 1815 VA; d. 1869 KY)/md. Martha L. Steele (1818 KY-1863 KY)>>Gerard A./md. Elizabeth Ashton>>Col. William A. (1744-1814 VA)/md. S. Mary Massey>> Capt. Phillip A. (1704-1753 VA)/md. Sarah Hooe (1708-1778)>>Phillip A./ md. Sarah Ashton in Stafford, VA>>Captain John Alexander, an immigrant from Scotland, came to VA/md. Catherine Graham. As for your original question: Dr. Alexander was shown on his WWI Draft Card to have been an M.D. in Hopkinsville, Christian County, KY.As an aside, here is a 1939 poster of the Al. G. Barnes circus: http://www.liveauctioneers.com/item/8710801http://www.liveauctioneers.com/item/8710801 One would imagine that Dr. Alexander was the physician for the employees and maybe even the customers of the circus.He's buried, btw, in Livingston Co., KY.