Siryfion Sir Drefaldwyn yn yr 20fed ganrif

Mae hon yn rhestr (anghyflawn) o ddeiliaid swydd **Siryf Sir Drefaldwyn** rhwng 1900 a 1974

## 1900au
* 1900: Capt. Peter Audley David Arthur Llanerchydol
* 1901: Arthur Watkin Williams-Wynn, Coed-y-Maen, Meifod
* 1902: Hugh Lewis, Glanhafren, Penystrywaid
* 1903: John Naylor, Plas Tre'r-llai, Leighton
* 1904: Edward Arthur Field Whittel Herbert, Upper Helmsley Hall, Efrog.
* 1905: Daniel Wintringham Stable, Plas Llwyn Owen, Llanbrynmair
* 1906: Sydney Rankin Heap, Mellington, Yr Ystog
* 1907: Hugh Edmund Ethelston Peel, Neuadd Llandrinio
* 1908: Arthur Erskin Owen Humphreys-Owen, Glansevern, Aberriw
* 1909: Noel James Price Turner, Neuadd Sylfaen, Y Trallwng.
## 1910au
* 1910: Yr Arglwydd Herbert Lionel Vane Tempest-, Y Plas, Machynlleth
* 1911: Edward Jones, Maesmawr, Llandinam
* 1912: William Henry Burton Swift, Crescent House, Y Drenewydd.
* 1913: William John Corbett-Winder, Vaynor, Aberriw
* 1914: John Murray Naylor, Leighton
* 1915: Reuben Norton
* 1916: Major Hugh Edward Bonsall
* 1917: John Bancroft Williams, Dolforgan, Ceri
* 1918: Reginald Quayle Wilson, Brooklands, Y Trallwng
* 1919: Uwchfrigadydd Arthur Edmund Sandbach, Bryngwyn, Llanfechain
## 1920au
* 1920: Uwchgapten Harmood Harmood-Baner, Caerhowel, Trefaldwyn
* 1921: Samuel Arthur Sampson, Dysserth, Y Trallwng
* 1922: William Henry Perry Leslie, Bryntanat, Llansantffraid
* 1923: Pryce Pryce-Edward Jones
* 1924: Robert Carey Chapple Gill, Blwchycibau
* 1925: Herbert Arthur Openshaw, Brongain, Llanfechain
* 1926: Donald Walter Macpherson, Ceri
* 1927: William Marsahll Dugdale, Llanfyllin
* 1928: Henry Hall Platt, Llanymynech
* 1929: Arthur Lloyd Owen Owen, Machynlleth
## 1930au
* 1930: Francis Reynolds Verdon, Y Trallwng
* 1931: Hector Carlisle Pilkington, Bryn Tanat, Llansantffraid
* 1932: Yr Arglwydd Davies, Llandinam
* 1933: Humphrey Dod Lynes, Castell Caereinion
* 1934: Dr Alfred Shearer, Y Drenewydd
* 1935: Dr. William Henry Lewis, Llansantffraid
* 1936: Arthur Loftus Onslow, Llanidloes
* 1937: Major William John Burdon Evans, Y Drenewydd
* 1938: John Howell Evans, Llundain a Phont Dolanog
* 1939: Evan Emrys Jones, Caersŵs
## 1940au
* 1940: John Davies Knatchbull Lloyd, Trefaldwyn
* 1941: Syr Charles Gerald Trevor, Cegidfa.
* 1942: Harri Morgan, Burnham, Bucks a'r Drenewydd
* 1943: Christine Stella Way, Aberriw
* 1944: Col. Charles Stafford Price-Davies, Marrington, Llanffynhonwen
* 1945: Thomas Evan Kinsey, Caersŵs
* 1946: Marguerite Frances Hanmer, Llanbrynmair
* 1947: Jano Clement Davies, Meifod
* 1948: Edward William Minton-Beddoes, Church Stretton, Swydd Amwythig a Dolfor
* 1949: Syr George Frederick Hamer, Llanidloes.
* 1950: Uwchgapten Robert John Brymer-Griffith, Bryneira, Y Drenewydd, Sir Drefaldwyn.
## 1950au
* 1951: Yr Anrh. William Rupert Davies, Neuadd Brookland, Y Trallwng, Sir Drefaldwyn.
* 1952: Dr. Richard Davies-Jones, Llys Hafren, Llanidloes
* 1953: Robert William Griffiths, Woodlands, Ffordun, ger Y Trallwng
* 1954: Thomas Williams, Ffordun
* 1955: Major William Mason Marriott, CBE, Park House, Parc Castell Powys, Y Trallwng.
* 1956: Capten Edward Calcott Pryce, Cegidfa
* 1957:. Hywel Wynn Owen, The Moorings, Y Trallwng
* 1957: Ralph Edward Blackett Beaumont
* 1958: Y Ledi Sybil Dorothy Vaughan Hamer 
* 1959: Uwchgapten John Eldon Marshall Dugdale, TO, The Forest, Ceri, Y Drenewydd
## 1960au
* 1960: Y Ledi Lucie Haden Stable, Llanbrynmair
* 1961: Yr Athro David Vaughan Davies, Llanidloes a Llundain
* 1962: Mawr Hugh Meredith Peter Lewis, TD, Neuadd Milford, Y Drenewydd.
* 1963: Charles Lionel Joce Humphreys, Aberriw
* 1964:. David Philip Davies, Stalloe, Trefaldwyn
* 1965:. John Edfryn Jones, Henblas, Caersŵs
* 1966: Joyce Daphne Howard, Buttington
* 1967: Dr. Nicholas Bennett-Jones, Plas-y-Coed, Y Drenewydd
* 1968:. Alun Meurig Jones, Court Calmore, Trefaldwyn.
* 1969: Yr Anrh. Edward David Grant Davies, Cefngwyfed, Tregynon.
## 1970au
* 1970: John Kynaston Williams, Cegidfa
* 1971: Cecil Edward Vaughan Owen, Llanidloes
* 1972: Stephen Williams, Neuadd Black, Y Drenewydd.

## Cyfeiriadau
Categori:20fed ganrif yng Nghymru
* 1900