In 1914 Percy was serving with the 13th Battalion, York and Lancaster Regiment. His service number was 373.  On 26 July 1916 P Gyte was listed as a casualty suffering from shell shock and scabies. Date of discharge was 23 September 1916.
UK census 1891 - 27 George Street, Wombwell, Yorkshire
Abram Gyte - Head - M - 41 - Coal Miner - Derby, Birchover
Mary A Gyte - Wife - M - 41 - - Derby, Staveley
George Gyte - Son - S - 18 - Coal Miner - Yorks, Wombwell
Arthur Gyte - Son - S - 16 - Coal Miner - Yorks, Wombwell
↑ GRO index (Death) - Percy Gyte Age 82 Jun 1971 Staincross Volume 2d Page 1132
↑ "United Kingdom, World War I Service Records, 1914-1920," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:QVBP-DZ6Q : 23 March 2015), Percy Gyte, 1914; citing Barnsley, Yorkshire, England, York and Lancaster Regiment, regiment #13/373, publication WO 363, The National Archives, Kew, Surrey; FHL microfilm 7,384,984.
↑ www.thegenealogist.co.uk - Military » Casualty Lists - P Gyte, Casualty Status Wounded, Rank Private, Service Number 373, Regiment York and Lancaster Regiment, Category NCO's and Men, Daily List Date 4th September 1916, Source Daily Casualty Lists Reported In Newspapers, Originally From His Majesty's Stationery Office
It may be possible to confirm family relationships with Percy by comparing test results with other carriers of his Y-chromosome or his mother's mitochondrial DNA.
However, there are no known yDNA or mtDNA test-takers in his direct paternal or maternal line.
It is likely that these autosomal DNA test-takers will share DNA with Percy: