Found a good family tree on your William A. Hastings and wife Cora Louise Cliborne, along with children.
Found a few scant records for William. 1830 Nottoway Va census shows William listed as Hastings. A submitter has noted his spelling was Haistings.
1880 shows Wm.A. Hastings age 75 with wife Louisa age 70 with son Travis age 39
William was born 1805 in Nottoway, married in 1835, and died 11/05/1885 in Nottoway. his parents were
Peter Hastings, 1773 and O.Rebecca Smith 1777-1850
Cora Louise/a Cliborne/Clibourne daughter of Austin 1796-1840 and nancy Bevill(e) 1786 Mecklenburg-1892
Rebecca 1837, William J 1839-1878, Travis 1841-1919, Martha Louise 1842-1916,. John Thomas 1843-1919, James P 1847, Mary Elizabeth 1847- 1892, and Laura 1853
I am assuiming that James P. was a twin of Mary Eliz, and he died before the first year or soon after birth, if not a stillborn.
I hope this has helped you.