The birth date and place for your Covington Allen seem right. My Covington was a rowdy one. He married Christina Acord 22 Feb 1822, was listed in the 1826 Roane Co. Tax List, was arrested for murder in 1827 and escaped from the Knox County jail. The death was ultimately ruled accidental and Covington was not indicted. An Alexander Coulter was also involved in the proceedings. Also in 1827 he provided surety for the marriage of his sister-in-law Louisa Acord. Then in 1929 he was charged by the state as the father of the illegitiment child of Rebecca Coulter. Covington along with William Allen and John Renfro provided a bond for support of the child. In 1830 a Coventon Allen appears in the 1830 Morgan County, IL census next door to a William Allen. Covington 20-30 has a wife 20-30(Christina was born about 1806), a son and a daughter both <5. It is not known when Christina died but it was before the settlement of her parent's estate in 1842 when money was paid to her heirs. On 21 Jul 1833 a Covington Allen married Charity Cruthis in Morgan County and on 16 Dec 1833 a Covington Allen married Mrs. Lucinda Loomis (apparently your Lucinda Early) in Morgan Co. In 1850 C. and Lucinda Allen are found in Clinton Co. IL. The eldest three children were born before 1833 and may be the children of Christina Acord. No positive match...but it sure looks close. Your thoughts?