Following on from Cathy's suggestion...
Electoral registers:1927-1929: Windy Bank, Well End, Shenley - Edward Arthur Every-Clayton, Elsie Every-Clayton
1930: Windy Ridge, Well End, Shenley - Edward Arthur Every-Clayton, Elsie Every-Clayton
I couldn't find any newspaper references to Frederick's death.
It looks like Edward Arthur and Frederick Oswald are half-brothers though...
GRO BMD references:1892 Q3 Marriage: Edward E Every-Clayton & Mary Fetherstonhaugh Heylin; Newcastle T; 10b; 138
1905 Q4 Death: Mary Fetherstonhaugh Every-Clayton; age 43 (born c1862); Skipton; 09a; 33
1907 Q3 Marriage: Edward E Every-Clayton & Emily May Tooze; Richmond S.; 02a; 1063
1936 Q2 Death: Edward Every Every-Clayton; age 68 (born c1868); Paddington; 01a; 39
1895 Q2 Birth: Dorothy Mary Every-Clayton (mmn: Heylin); Skipton; 09a; 43
1897 Q2 Birth: Edith Margaret Every-Clayton (mmn: Heylin); Skipton; 09a; 54
1899 Q4 Birth: Edward Arthur Every-Clayton (mmn: Heylin); Skipton; 09a; 44
1905 Q4 Birth: Ruth Fetherstonhaugh Every-Clayton (mmn: Heylin); Skipton; 09a; 39
1912 Q3 Birth: Frederick Oswald Every-Clayton (mmn: Tooze); Skipton; 09a; 75
Censuses:1901 Skipton, Yorkshire
Edward Every-Clayton and wife Mary (nee Heylin; mother of Edward Arthur)
And 3 children
Ref RG13; Piece 4033; Folio 96; Page 8
https://www.familysearch.org/ark:/61903/1:1:X95L-HZ51911 Skipton, Yorkshire
Edward Every-Clayton and second wife Emily May (nee Tooze; mother of Frederick Oswald)
And 3 children
https://www.familysearch.org/ark:/61903/1:1:XWNN-Q551911 Arnside, Westmorland
Edward Arthur Every-Clayton.
https://www.familysearch.org/ark:/61903/1:1:X7JJ-VHBProbates:Edward Every Every-Layton
of 68 King Edwards-grove Teddington Middlesex
died 12 June 1936 at St Lukes Hospital Bayswater Middlesex
Probate London 8 Aug to
Leopold Ernest Valentine Every-Clayton doctor of medicine
and Thomas Chambers Robinson solicitor
Effects £1009 2s 9d
https://probatesearch.service.gov.uk/Calendar?surname=clayton&yearOfDeath=1936#calendarNewspapers:Burnley Gazette
07 Oct 1905
Death Of Mrs Every-Clayton, Of Skipton
- Wife of Edward Every-Clayton, manager of York City Bank, Skipton
- Gave birth on Sep 11th
- Taken ill at residence West Bank, on Sunday last and expired soon after
- 43 years old
- Leaves husband and 4 children
Manchester Courier and Lancashire General Advertiser
02 Aug 1907
Marriages
Every-Clayton--Tooze -- On the 29th July, at Richmond, Surrey, Edward E. Every-Clayton, of West Bank, Skipton, Yorks, to Emily May (Sissy), only daughter of Arthur E. Tooze, Barrister-at-Law, of the Middle Temple, London, E.C.
Dundee Courier
04 Jul 1938
Marriages
Galloway--Every-Clayton -- At St Paul's, Durban, Natal, on 20th June, by the Rev. L. H. Hancock, John Campbell Galloway, of Alyth, to Emily May Every-Clayton, of Richmond, Surrey, only daughter of the late Arthur Edward Tooze, barrister-at-law, Middle-Temple, London, and widow of Edward Every Every-Clayton, of Carr Hall, Nelson, Lancashire.