William Hackley Allred was the son James and Elizabeth Warren Allred. His father, James Allred, was born in Randolph County, North Carolina, in 1784. His mother, Elizabeth Warren, was born in Spartanburg, South Carolina, in 1786. James Allred and Elizabeth Warren met in Franklin County in northeast Georgia. They had traveled there as children with their parents. They married there in 1803. The first of their 12 children, William Hackley Allred, was born April 14, 1804. When he was a toddler, the young family went with his Allred family to Bedford County, Tennessee. However, James Allred, needed to earn money to purchase land in Tennessee. James took his very young family and went further north into Warren County, Kentucky, in 1805. There, Martin Carrol Allred was born in 1806. After a few years, they moved to Yellow Banks, Kentucky, along the Ohio River. Today Yellow Banks is Owensboro, Kentucky. His sister, Hannah Caroline, was born there in 1808. His father was on the 1810 Federal Census in Ohio County, Kentucky. By 1811, James has earned enough money to take the family back to Bedford County, Tennessee, and purchased land near the growing Allred families.
The property next to that of James Allred belonged to Anderson Ivie, married to the oldest sister of James, Sarah Allred. On March 28, 1824, William Hackley Allred, married his first cousin, Elizabeth Ivie. The first three of their 14 children were born in Bedford County: Matilda Katharine, Delila Mildred and Wilson Monroe Allred. In 1830, the Allred families in Bedford County needed new lands for their growing families. Anderson Ivie took his family in 1829 to Ralls County, Missouri, along the Salt River. It was about 25 miles west of the Mississippi River. The Allreds joined them in 1830. Lewis Porter, Pearlina, and Enoch Allred and were born in Monroe County. The county was divided from Ralls soon after the families arrived in Missouri. Emma Allred was born in Caldwell County while the family lived in Northwestern, Missouri. Hyrum, Joseph Robert and Amasy Lyman Allred were born in Monroe County. Sarah Elizabeth, Willis Winfield, Celeste and Mary Elizabeth Franklin Allred were born in Adair County, Missouri. The family moved to new lands in Texas in the late 1850s. They appear on the 1860 Federal Census in Collin County in the Highland Post Office District. His occupation was farmer. With them were children: Joseph, Pearlina, Lyman, Sarah Elizabeth, Willis W., Celeste and Mary Franklin. Listed just below them were his son, Enoch Allred, and his wife, Ellen. Soon they moved a few miles north to Grayson County, Texas, just south of the Red River and Indian Territory (Oklahoma) across the river. Elizabeth Ivie Allred died there March 22, 1870. She is buried in a cemetery on private land in Grayson County. The exact arrival information for William Hackley Allred in Spring City, Utah, is not known. He is listed on records there in 1874. His daughter, Pearlina Allred Coy, a young widow, and his oldest son, Wilson Monroe Allred, went with him to Utah. His other children remained in Texas, Oklahoma or Missouri. He died in Spring City, August 1, 1890, and is buried near his parents, James and Elizabeth Allred, and his younger brother, James Tillman Sanford Allred, in the Spring City Cemetery.