Looking for connections to the Stewart family.

Thomas, his wife, Margaret, and two sons appear to have all lived in the county. From SSDBI
FRANK STEWART 24 Apr 1888 Sep 1971 83801 (Athol, Kootenai, ID)
MARGARET STEWART 12 Aug 1890 Oct 1971 83801 (Athol, Kootenai, ID)
HAROLD STEWART 17 Jan 1910 Jul 1982 83801 (Athol, Kootenai, ID)
CYRUS E STEWART 01 Sep 1913 08 Sep 1992 83803 (Bayview, Kootenai, ID)

Trying to confirm the connection to my own Irish line (mid 1800's)

Thanks so much.