Kenyon-Slaney was son of Percy Kenyon-Slaney (1861-1911) and his wife, Geraldine Ellen Georgina, daughter of the Reverend George William Whitmore, who had made their home at Langworthy, Devon. His uncle Colonel William Kenyon-Slaney had also been a Member of Parliament.
Throughout the First World War he served with Royal Devon Yeomanry which became the 96th Brigade, Royal Field Artillery, seeing action on the Western Front. He was mentioned in despatches, awarded the Military Cross and was gassed several times, subsequently affecting his health. After the war he was on the Territorial Army Reserve of Officers with the rank of Major.
He was elected at the 1924 general election as Member of Parliament (MP) for the Tavistock division of Devon, and held the seat until his death, in a Torquay nursing home, in 1928, aged 32. His health had caused him to announce he would not stand at the next General Election. His last home was at Beechwood House, Plympton, Devon.
- Leigh Rayment's Historical List of MPs – Constituencies beginning with "T" (part 1)[self-published source][better source needed]
- Burke's Peerage, Baronetage and Knightage, 1929. Burke's Peerage Ltd. p. 1351.Under family article Baron Kenyon.
- Kelly's Handbook to the Titled, Landed and Official Classes, 1926. Kelly's. p. 971.
- "Obituary. Major Kenyon-Slaney". Shrewsbury Chronicle. 14 September 1928. p. 7.The Kenyon-Slaney family were seated in Shropshire.
- Craig, F. W. S. (1983) . British parliamentary election results 1918–1949 (3rd ed.). Chichester: Parliamentary Research Services. p. 330. ISBN 0-900178-06-X.
- Who Was Who, 1916-1928. A and C Black. 1947. p. 581.
- Hansard 1803–2005: contributions in Parliament by Major Philip Kenyon-Slaney
|Parliament of the United Kingdom|
Maxwell Ruthven Thornton
|Member of Parliament for Tavistock
1924 – 1928
Wallace Duffield Wright
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