Not a definitive answer, but perhaps a clue.
An on-line tree at ancestry lists Thomas as father of Elizabeth
Armstrong b 22 Sep 1810.
Kay--
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Horton-Woodward families of
IndianaEntries: 3112 Updated: Sat Aug 25 23:54:29 2001 Contact: Janet May
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1. Thomas
Armstrong.
Children of Thomas
Armstrong are:
+ 2 i. Elizabeth
Armstrong was born 22 SEP 1810 in
KY, and died 16 OCT 1865 in
Sullivan Co,
Gill Twp, IN,
Bennett Cemetery.
3 ii. James
Armstrong.