I believe William Newton's parents were Henry Hartwell Porch and Lucinda Eason. The following are my notes:
Henry Hartwell Porch
abt 1803
Franklin, NC
Lucinda Eason
abt 1816
Tn
Census Records
1850 U. S. Federal Census
Jefferson City, Cole County, Missouri
Dated August 29th, 1850
282, 289
H. H. Porch 47, M, W, Farmer, NC
Lucinda 34, F, W, Tenn
Thomas S. 20, M, W, Farmer, Ky
Eldridge M. 18, M, W, Farmer, Ky
Henry H. 15, M, W, Farmer, Ky
Benjamin H. 14, M, Mo
Allen B. 09, M, Mo
Andrew J. 06, M, Mo
John A. 04, M, Mo
William N. 9/12, M, W, Mo
1860 U. S. Federal Census
Jefferson City, Moreau, Cole County, Missouri
Dated June 10th, 1860
H. H. Porch 57, M, W, Farmer, $1500, $500, NC
Lucinda 44, F, W, Ky
Allen 20, M, W, Mo
Andrew 16, M, W, Mo
Wm. N. 10, M, W, Mo
Jas. W. 08, M, W, Mo
Mary E. 07, F, W, Mo
Benj. 24, M, W, Farmer, $1000, $200, Mo
Rebecca J. Ricketts 17, F, Domestic, Mo
1870 Census
Mount Pleasant Twp., Bates County, Missouri: Dated 6-18-1870/Lucinda
Lucinda head of household in 1870 census; Newton & James in the home.