1a.  Byron Sistler & Barbara Sistler.  1987.  Early East Tennessee Marriages.  Byron Sistler & Assoc., Inc., Nashville, TN:  not found.  Said to include all extant ante-bellum marriage records from eastern Tennessee, including Claiborne Co.

1b.  Jordan R. Dodd, ed.  1993.  Missouri Marriages:  Early to 1850.  Liahona Research, Orem, UT (Broderbund CD-227):

Alford, Thomas

Mansfield, Mary

Dec 20, 1843

Chariton Co.

2.  Alford Cemetery, Linn Co., OR (online at the Linn Genealogical Society web page):

ALFORD, Thomas (b. 1802 - d. 20 NOV 1892) Held DLC [Donation Land Claim] 1301 RB Linn Co., Oregon. Married three times: - 1st to Kesia Cupp; - 2nd to Mrs. Polly Wiliams; - 3rd to Emaline Galey. Father of 19 children. (Files of John Miles & Dick Milligan)

ALFORD, Emaline (b. 1825 - d. 20 FEB 1895) (NEE GALEY) Wife of Thomas Alford. Died at age of 76 years.

I have no idea what "Held DLC 1301 RB" means, and they give no explanation; nor do they make it clear what information was on the stone and what has been added (or changed), so nothing here can be relied upon as primary data — except for the fact that Thomas and Emaline are buried there.  Emaline was born in 1825, so if she died in 1895, she was 70 years old, not 76.  Update: another researcher confirms the unreliability of information at this site.

3.  Anon.  1878.  Illustrated Historical Atlas Map of Linn & Marion Counties, Oregon.  Edgar Williams & Co., San Francisco, CA (courtesy of Alicia Roundy Houston):

…page 55, contains a lengthy biography of Thomas Alford.  This appears to be written from a personal interview, or from information provided by Thomas, because it is mostly accurate.  It is this biography that documents Kesia Cupp as a daughter of Jacob Cupp, "a prominent man of his time".

4.  WorldConnect / Ancestry World Trees (online at RootsWeb.com/Ancestry.com).

5.  LDS.  Family Search: Internet Genealogy Service:  AF - Ancestral File (online at FamilySearch.org).

6.  Email from Alicia Roundy Houston.