Efford Cobb COLLIER was born in Upson County, Georgia, on 4 May 1811, and died in Texas on 26 Apr 1867. He was a farmer.

Efford married Elizabeth Singleton HARRIS in Talbot County, Georgia, on 13 Nov 1834. She was born 24 Nov 1820, and died in Brazos County, Texas, on 18 Jan 1873. Her parents were the Reverend WEST and Martha G. Harvey HARRIS.

Efford and his family migrated to Texas in 1857 and settled near Douglassville.

Nine of their children were born in Georgia, and two in Cass County, Texas:
1 - William Harris Booker COLLIER, 20 Dec 1838 - 5 Jun 1862.
2 - Martha Francis COLLIER, 20 Dec 1840 - 18 Jun 1925.
3 - Sarah Colquitt COLLIER, 9 Nov 1842 - 27 Feb 1907.
4 - Mary Margaret COLLIER, 8 Jan 1847 - 5 Oct 1873.
5 - Effort Cuthbert COLLIER, 3 Jan 1849 - 14 Nov 1918.
6 - Robert Redding COLLIER, 29 Jan 1851 - 15 Dec 1925.
7 - Wesley Harris COLLIER, 9 Nov 1852 - 28 Oct 1925.
8 - Isaac Groves COLLIER, 2 Feb 1855 - 16 Jan 1916.
9 - John Howard COLLIER, 24 Apr 1857 - 29 Apr 1937.
10 - Elizabeth Andrews COLLIER, 24 Dec 1858 - 21 Aug 1875.
11 - Edward Fleavellan COLLIER, 15 Mar 1861 - 8 Nov 1941.