For Augusta Benjamin I have her birthdate as 5 Nov 1835 in Black River, Kings, NS. Her middle name was Elmira. Augusta was the was the daughter of Ezekiel Benjamin and Phebe Illsley. Augusta was the wife of Russell Coldwell, b 4 Nov 1808 in Gaspereau, Kings, Nova Scotia. Russell was the son of David Coldwell and Phebe Bishop. Russell and Augusta had children - Adelia D. Coldwell, b. 1866 & died 17 Nov 1951(married Silas J. Baker, Apr 1850-1824. Born in Bridgewater, Lunenburg, NS)Adelia had a sister Adelaide Elmira Coldwell (born abt. Nov 1864, died 24 Jun 1900) who married John Albert Coldwell 13 Oct 1883. John was the son of John B. Coldwell IV (1825-24 Dec 1863) and Martha Coldwell (maiden name was also Coldwell), 22 Jan 1831-17 Feb 1908. Martha was the daughter of Ebenezer F. Coldwell and Mary Stevens. John B. Coldwell was the son of John Coldwell and Isabella Duncanson.
I also have a William born between 1799-1843, married Mary Nowlin, and had son Willard b 1839-1869. Hope this helps.