Robert A. Dallas was born about 1789 in Virginia.
"Precilla Isaril" and Robert Dallis were married on 7 Aug 1810 in Belmont County, Ohio. The ceremony was performed by Thos, Wilson, J.P.
In 1850, Robert A. and Pricilla "Dallis" lived in Kirkland Township, Belmont, Ohio, with three children. Robert was a farmer.
In 1860, Robert A. and Percilla Dallas lived in Kirkland Township, Belmont, Ohio.
In 1870, Robt. A. Dallas lived in Kirkland Township, Belmont, Ohio, with his wife Precilla. Robert was a farmer.
A descendant's application for membership in the Daughters of the American Revolution shows that Robert died in 1875.
"United States Census, 1850," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MXSR-ZPY : 12 April 2016), Robert A Dallis, Kirkwood, Belmont, Ohio, United States; citing family 737, NARA microfilm publication M432 (Washington, D.C.: National Archives and Records Administration, n.d.). House Number 704, Household ID 737, Line Number 39. (Stamped page 89b.)
Robert A Dallis, 61 b. Virginia; Pricilla Dallis, 51 b. Maryland; Nancy Dallis, 19; Layfette Dallis, 17; Henry Dallis, 15. The children were all born in Ohio. Several Israel families were enumerated on the same page.
Robert A Dallas, 71 b. Virginia; Percilla Dallas, 70 b. Maryland (indexed as Missouri)
↑ 3.03.1 "United States Census, 1870," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:M6VN-9FH : 12 April 2016), Precilla Dallas in household of Robt A Dallas, Ohio, United States; citing p. 21, family 154, NARA microfilm publication M593 (Washington D.C.: National Archives and Records Administration, n.d.); FHL microfilm 552,672.
Robt. A. Dallas, 80 b. Virginia; Precilla Dallas, 79 b. Maryland
↑ "Ohio, County Marriages, 1789-2013," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:X8T8-L7S : 10 December 2017), Robert Dallis and Precilla Isaril, 07 Aug 1810; citing Belmont, Ohio, United States, reference Bk B Pg 52; county courthouses, Ohio; FHL microfilm 317,290.
↑ Entry for Mrs. Pine Augustine Anderson Lilley: Lineage book - National Society of the Daughters of the American Revolution. Vol. 110, (1914) Page 156. Accessed at HathiTrust.org on 25 Dec 2018. Page 156