The book, Dallasania is out out of print. And sometimes found in local southern Illinois libraries. The following is from the early Dallis ancestors which came through Wilson Co. TN. It is possible some children branched off.
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Descendants of Robert Dallis
Generation No. 1
1.ROBERT1 DALLIS was born Abt. 1775 in Bedford Co. VA, and died June 1838 in Wilson Co. TN.He married PHEBE MORGAN September 22, 1800 in Wilson Co. TN, daughter of THOMAS MORGAN and SUSANNAH UNKNOWN.She was born Abt. 1779 in Bedford Co. VA, and died November 1839 in Wilson Co. TN.
Notes for ROBERT DALLIS: Some genealogy researchers have indicated that Robert and his wife were friends of Daniel Boone and helped Boone with clearing the Cumberland Pass. At this point this fact has not been proven, however, it is quite likely as the migration path and dates of the Dallis family moving through the Cumberland Pass on way to Tennessee and Illinois would support the claim.
More About ROBERT DALLIS and PHEBE MORGAN: Marriage: September 22, 1800, Wilson Co. TN
Children of ROBERT DALLIS and PHEBE MORGAN are: i. JOSHUA2 DALLIS, b. Abt. 1802, Bedford Co. VA. ii. HANNAH DALLIS, b. Abt. 1803, Bedford Co. VA; d. Bef. 1844, Wilson Co. TN; m. MICHAEL JONES, August 14, 1823, Wilson Co. TN.
More About MICHAEL JONES and HANNAH DALLIS: Marriage: August 14, 1823, Wilson Co. TN
2. iii. MORGAN DALLIS, b. 1808, Wilson Co. TN; d. July 10, 1858, Illinois. 3. iv. ELIZABETH DALLIS, b. Abt. 1810, Wilson Co. TN; d. 1840, Wilson Co. TN. 4. v. LUCRETIA (SARAH OR SALLY) DALLIS, b. Abt. 1804, Wilson Co. TN; d. Abt. 1840, Wilson Co. TN. vi. SUSAN DALLIS, b. 1812, Wilson Co. TN; d. December 14, 1897, Saline Co. Illinois. vii. THOMAS DALLIS, b. 1813, Wilson Co. TN; d. 1876. 5. viii. MALINDA (OR BALINDA) DALLIS, b. Abt. 1816, Wilson Co. TN; d. Bef. 1850, Wilson Co. TN. 6. ix. BENJAMIN FRANKLIN DALLIS, b. 1819, Wilson Co. Tennessee; d. Saline Co. Illinois. x. ROBERT DALLIS, b. Abt. 1809, Wilson Co. TN.