Lieut John Grinlinton was commissioned as a 2nd Lieutenant in the 1st Volunteer Battalion, Royal Berkshire Regiment, in December 1898. Transferred to the Royal Garrison Artillery in January 1900 and served in the China campaign of 1900.
Served with the Native Mountain Artillery in India from January 1901, and took part in the operations in Waziristan 1901-02.
Promoted to Lieutenant in April 1901; appointed Assistant Instructor in Gunnery, Aden in January 1910.
Promoted to Captain in January 1911 and Major in October 1915.
As a Captain in the R.G.A. he entered France on 23 April 1915 and served on the Western Front until December 1916, being twice mentioned in despatches and awarded the D.S.O.
He was initiated in Fairclough lodge 2575 which was consecrated in 1895 and erased in 1952.