No parents, sorry. Was he married twice? You might inquire of the Garland County Clerk if there are any marrriage records or death records that indicate more.
Source: "United States Census, 1900," database with images, FamilySearch (
https://familysearch.org/ark:/61903/1:1:M3FS-SYM : accessed 15 August 2018), William Webb in household of John H Robbins, Mountain Valley & Union Townships, Garland, Arkansas, United States; citing enumeration district (ED) 32, sheet 10A, family 168, NARA microfilm publication T623 (Washington, D.C.: National Archives and Records Administration, 1972.); FHL microfilm 1,240,059.
https://www.familysearch.org/ark:/61903/3:1:S3HY-6G1W-278?i=18&cc=1325221
United States Census, 1900 Mountain Valley & Union Townships, Garland, Arkansas
John H Robbins Head M 35 Arkansas
Ruth E Robbins Wife F 30 Feb. 1870 Arkansas/OH/TN
John W Robbins Son M 6 Arkansas
James E Robbins Son M 4 Arkansas
Charles M Robbins Son M 3 Arkansas
Florine Robbins Dau F 0 Arkansas
William Webb Father-in-law M 59 July 1841 Ohio/PA/OH Marrried 34 yrs
Source: "United States Census, 1870," database with images, FamilySearch (
https://familysearch.org/ark:/61903/1:1:MNCQ-Q65 : 12 April 2016), Ruth E Webb in household of William Webb, Arkansas, United States; citing p. 1, family 7, NARA microfilm publication M593 (Washington D.C.: National Archives and Records Administration, n.d.); FHL microfilm 545,552.
https://www.familysearch.org/ark:/61903/3:1:S3HY-DRLQ-6PF?cc=1438024
United States Census, 1870 Tennessee, Grant, Arkansas
William Webb M 29 Ohio
Mary S Webb F 25 Tennessee
Charles M Webb M 4 Arkansas
Ruth E Webb F 0 Arkansas
Source: "United States Census, 1880," database with images, FamilySearch (
https://familysearch.org/ark:/61903/1:1:MNW7-Y2B : 24 August 2017), William Webb, Hot Springs, Garland, Arkansas, United States; citing enumeration district ED 74, sheet 144D, NARA microfilm publication T9 (Washington D.C.: National Archives and Records Administration, n.d.), roll 0045; FHL microfilm 1,254,045.
https://www.familysearch.org/ark:/61903/3:1:33SQ-GYBW-9CM2?i=15&cc=1417683
United States Census, 1880 Hot Springs, Garland, Arkansas
: William Webb Self M 38 Indiana, United States
: Mary P Webb Wife F 36 Arkansas, United States
: Charlie Webb Son M 10 Arkansas, United States
: Rutheran Webb Dau F 9 Arkansas, United States
:Lula A Webb Dau F 7 Arkansas, United States
: Joe Webb Son M 2 Arkansas, United States