Thomas McClurken Biography Update

I have updated the biography of Thomas McClurken to include the links for the last four blog entries. Specically: his Revolutionary War Service; his birth year change and sources; the 1800 US Census image; and his obituary. Additionally, I corrected the timing of his move from South Carolina to Illinois (left December 1833), associated land purchases, and references from "History of Oakdale Township." I have also included the Revolutionary Soldiers Marker in South Carolina and references from "The Reformed Presbyterian and Covenanter, Volume 14" and "History of the Reformed Presbyterian Church in America." See updated biography.