not listed as a survivor in his mother Margaret’s 1907 OBIT

1861UKC David Williams and family; Wales> Glamorgan > Llantwit Fardre > District [16]; image 31 of 37 @ancestry.com; Source information: RG9/4044; Registration district: Cardiff; Sub-registration district: Llantrisaint; ED, institution, or vessel: [16]; Folio: 60; Page: 31; Household schedule number: 142; GSU Number: 543226
David Williams, HOH, b.1825 in Aberdare, Glamorgan, Wales
Margaret Williams, Wife, b.1829 in Aberdare, Glamorgan, Wales
Mary Ann Williams, Daughter, b.1848 in Aberdare, Glamorgan, Wales
Evan Williams, Son, b.1854 in Eglurisilan, Glamorgan, Wales
Elizabeth Williams, Daughter, b.1856 in Eglurisilan, Glamorgan, Wales
John Williams, Son, b.1858 in Eglurisilan, Glamorgan, Wales
Edward Williams, Son, b.1861 in Llantwitvardre, Glamorgan, Wales

not with fam on 1871UKC
1871UKC Wales Census; Glamorgan Llantwit Fardre District 10; image 6 of 28 @ancestry
Source Citation Class: RG10; Piece: 5382; Folio: 27; Page: 5; GSU roll: 849479
Source Information: Ancestry.com. 1871 Wales Census [database on-line]. Provo, UT, USA: Ancestry.com Operations Inc, 2004.
Civil Parish: Llantwit Fardre
County/Island: Glamorgan Wales
Registration district: Pontypridd
Sub-registration district: Llantrisant
ED, institution, or vessel: 10
Household schedule number: 25
Piece: 5382; Folio: 27; Page Number: 5
Household Members:
Lewis Hughes 26 b Aberdare; engine driver
Mary Ann Hughes 23 b Aberdare
Margaret Hughes 1 b Llantwit Vardre
Evan Williams 18 b Eglwysilan; boarder coal miner Brother!

1881UKC David Williams & Family, 2 Pages; Wales Census > Monmouthshire > Mynyddyslwyn > District 6; image 20-21 of 45 @ancestry.com; Source Information: Census Place Mynyddyslwyn, Monmouth, Wales; Family History Library Film: 1342268; Public Records Office Reference: RG11; Piece / Folio: 5273 / 30; Page Number 19
David WILLIAMS   Head   M  57   Aberdare, Glamorgan  OCC: Accountant    
Margret WILLIAMS   Wife   M   54   Aberdare, Glamorgan  Accountant Wife 
Evan WILLIAMS   Son  27   Eglwysilan, Glamorgan; Coal Miner    
John WILLIAMS   Son  24   Eglwysilan, Glamorgan;  Coal Miner    
Edmund WILLIAMS   Son   20   Llantwit Fardre, Glamorgan;  Coal Miner 
Fanny P. WILLIAMS   Dau 14   Llantwit Fardre, Glamorgan,;   Scholar 
Lucy WILLIAMS   Dau    12   Llantrisant, Glamorgan;  Scholar    
Agnes HUGHES   G Dau   2   Llantwit Fardre, Glamorgan, 
on same page as Abraham & Gwenllian Jenkins!