per William Frederick Llewelyn Buckingham - Llew for short!- email of 25 mar 2008:
My name is Llewelyn Buckingham and I am one of the great great grandchildren of James Buckingham born in Bristol on 16th January 1813 and of his wife Ann born at Barmouth , Merionethshire, Wales on 18th January 1816. My late grandfather, Frederick Llewelyn Buckingham, my late father Frederick Glyn Buckingham and I were/are descendants of Frederick Buckingham the youngest child of James and Ann.
  Whilst poring over the entries in  James and Ann's family Bible over the Easter period with one of my cousins I realised that there was one branch of the family about which we knew little about- namely Henry Buckingham, one of the other sons of James and Ann. After a few minutes research on the internet we stumbled across the Oakey-Rowe family page .To our delight we discovered that the Buckingham descenants in the U.S.not only appear to be numerous,but even after the passage of a few generations the same or similar names seem to reappear. My father Glyn, for instance, had sisters named Gwyneth and Dilys!
   One thing we could not establish from your family page is whether there are any living male descendants of Henry Buckingham who still bear the Buckingham surname. I hope the Bucks still survive in name in the U.S even if their numbers in the U.K have now dwindled to just three! (namely one of my father's cousins Frederick Lewis Buckingham-now aged 94, an unmarried cousin of mine Lowri Buckingham, and myself !). 

BC FrederickLlewelynBuckingham1886.pdf
FreeBMD Births Dec 1886
Buckingham Frederick Llewelyn Festiniog vol 11b pg 365
COL697880_2019-33
ordered jul 2019 bef Buckingham Reunion in NY
SUperintendent Registrar’s District Festiniog
Registrar’s SUb-DIstrict Tremadoc
1886 BIRTHS in the Sub-DIstrict Tremadoc in the Counties of Merioneth & Carnarvon
no 139
30 nov 1886; New Street Tremadoc Carnarvon USD
Frederick Llewelyn, Boy
father Frederick Buckingham; OCC Stone Cutter
mother Jane Buckingham formerly Morgan
informant F Buckingham father, New Street Tremadoc
registered 31 dec 1886

1891UKC FredBUCK&fam 2 pages; 37 Dublin St, Caernarvonshire, Ynyscynhalarn, district 7, image 7&8 of 26 @ancestry.com; Source Citation: Class: RG12; Piece: 4648; Folio 71; Page 7; GSU roll: 6099758.
Household Members:
Fred Buckingham 33 stone cutter
Jane Buckingham 33
Row M Buckingham 12
James Buckingham 10
Edward Buckingham 8
Fred L C Buckingham 4
Ann Buckingham 1
Margaret Morgan 73

1901UKC Frederick Buckingham & Family; Caernarvonshire > Ynyscynhaiarn > District 7; image 4 of 24 @ancstry.com;
Civil parish: Ynyscynhaiarn; Ecclesiatical parish: Ynyscynhaiarn; Town: Tremadoc; County/Island: Caernarvonshire; Country: Wales; Source information: RG13/5261; Registration district: Festiniog; Sub-registration district: Tremadoc; ED, institution, or vessel: 7; Folio: 6; Page: 4; Household schedule number: 22
10 Church ST
Household:
Frederick Buckingham; Age in 1901: 43; Estimated birth year: abt 1858; Where born: Tremadoc, Caernarvonshire, Wales; Head
Jane Buckingham b abt 1858 in Tremadoc, Caernarvonshire, Wales, Wife
James Buckingham b abt 1881 in Tremadoc, Caernarvonshire, Wales, Son
Edward Buckingham b abt 1884 in Tremadoc, Caernarvonshire, Wales, Son
Fred Llewn Buckingham b abt 1887 in Tremadoc, Caernarvonshire, Wales, Son
Jane Buckingham b abt 1899 in Tremadoc, Caernarvonshire, Wales; Daughter
Annie Buckingham b abt 1890 in Tremadoc, Caernarvonshire, Wales, Daughter
Margaret M Buckingham b abt 1894 in Tremadoc, Caernarvonshire, Wales, Daughter
Margaret Morgan b abt 1815 in Talsarman, Merionethshire, Wales, Mother-in-law

FreeBMD Marriages Mar 1909 certificate #WMXZ165018
BUCKINGHAM Frederick Llewelyn Festiniog 11b pg 455
20 jan 1909 Tabernacle Chapel according to the R&C of the Calvinistic Methodists by certificate
Frederick Llewelyn Buckingham 22 yrs bachelor, Slate Mason; Post Office, Tremadoc
father Frederick Buckingham Stone Cutter
Laura Mary Jones 21 yrs spinster, 20 East Avenue,
father John Elias Jones, Wharf Labourer
R Morgan Buckinham, Edith Jones witnesses

1911UKC Wales Census Merionethshire Ynyscynhaiarn 07; image 678 of 958 @ancestry
Source Citation: Class: RG14; Piece: 34350; Schedule Number: 339
Source Information: Ancestry.com. 1911 Wales Census [database on-line]. Provo, UT, USA: Ancestry.com Operations, Inc., 2011.
Original data: Census Returns of England and Wales, 1911. Kew, Surrey, England: The National Archives of the UK (TNA), 1911.
Name: Fred Llewelyn Buckingham; Gender: Male
Age in 1911:24; Est birth year: abt 1887; Birth Place:Tremadoc, Carnarvon, Wales
Relation to Head: Son in Law
Civil Parish: Ynyscynhaiarn
County/Island: Merionethshire, Country: Wales
Street address: 20 East Avenue Portmadoc N W
Marital status: Married; Years Married: 2
Estimated Marriage Year: 1909
Occupation: Slate Mason
Registration district: Ffestiniog
Registration District Number: 628
Sub-registration district: Trenadoc
ED, institution, or vessel: 07
Household schedule number: 339
Piece: 34350
Household Members:
John Elias Jones 54
James Wyn Buckingham Under 1/12
John Elias Jones 29
Fred Llewelyn Buckingham 24
Laura Mary Buckingham 23
Elizabeth Jones 58

British Army WWI Pension Records 1914-1920 for Frederick Llewellyn Buckingham
B Bu Buc; image 6737 of 18099 @ancestry
Source Citation: WO364; Piece: 486
Source Information: Ancestry.com. British Army WWI Pension Records 1914-1920 [database on-line]. Provo, UT, USA: Ancestry.com Operations Inc, 2010.
Original data: The National Archives of the UK (TNA).
War Office: Soldiers’ Documents from Pension Claims, First World War
Name: Frederick Llewellyn Buckingham; Gender: Male
Age: 24; Birth Date: abt 1887
Birth Place: Ynyscynhaiarn, Carnarvonshire
Document Year: 1911
Regimental Number: 877
Regiment Name: 6th Bn. R. W. Yors
Form Title: Territorial Force Attestation
Number of Images: 12
Family Members:
Name Relation to Soldier
Frederick Llewellyn Buckingham Self (Head)
Laura Mary Buckingham Wife

1939 Register; England and Wales Register; Caernarvonshire Portmadoc UD ZDJC; image 13 of 22 @ancestry; Source Citation: The National Archives; Kew, London, England; 1939 Register; Reference: RG 101/7537C
Source Information: Ancestry.com. 1939 England and Wales Register [database on-line]. Lehi, UT, USA: Ancestry.com Operations, Inc., 2018.
Name: Frederick Ll Buckingham; Gender: Male
Marital status: Married
Birth Date: 30 Nov 1886
Residence Year: 1939
Address: 42
Residence Place: Portmadoc, Caernarvonshire, Wales
Occupation: Relieving Office, Registrar Births Death Mmarriages
Schedule Number: 127
Sub Schedule Number: 1
Enumeration District: ZDJC
Registration district: 629/4
Inferred Spouse: Laura M Buckingham
Inferred Children: Jane Buckingham & John Ll Buckingham
Household Members:
Frederick Ll Buckingham 30 Nov 1886 special constable
Laura M Buckingham 13 Mar 1888
Jane Buckingham 6 Feb 1913 Golf Club Assistant Secretary
John Ll Buckingham 18 Sep 1917
on same page as brother
Schedule Number: 124
Rowland M Buckingham b 6 Sep 1878, Monumental Mason; special constable
Elizabeth A Buckingham b 1 Apr 1875

England & Wales, National Probate Calendar (Index of Wills and Administrations), 1858-1995 1943 Aadahl-Byworth; image 335 of 375 @ancestry
Source Information: Ancestry.com. England & Wales, National Probate Calendar (Index of Wills and Administrations), 1858-1995 [database on-line]. Provo, UT, USA: Ancestry.com Operations, Inc., 2010.
Original data: Principal Probate Registry. Calendar of the Grants of Probate and Letters of Administration made in the Probate Registries of the High Court of Justice in England.
Name: Frederick Llewelyn Buckingham
Death Date: 12 Jul 1943
Death Place: Caernarvonshire, Wales
Probate Date: 2 Sep 1943
Probate Registry: Bangor
BUCKINGHAM Frederick Llewelyn of Eirianfa 42 New-street Portmadoc Carnarvonshire died 12 july 1943 at the Madoc Memorial Hospital Prtmadon Administration Bangor 2 sep to Laura Mary Buckingham wido. Efffects L943 3s 3d