The son of William Wyndham Hasler of Addingbourne House, Chichester. He came to Winchester from the Reverend J. Gresson’s school at West Worthing, and in 1885 was in the 2nd XI cricket team.
He passed through Sandhurst and in 1888 was gazetted to the 1st Battalion East Kent Regiment. From 1895 onwards he was engaged almost continuously on active service: with the Chitral Relief Force in 1895; on the Northwest Frontier in 1897, where he took part in the capture of the Tanga Pass; in South and West Africa from 1899 to 1903 and again, after an interval spent in Northern Nigeria, till 1910. During the South African War he was employed with the West African Force and the Rhodesian Field Force where he was severely wounded; his services were recognised with the rank of Brevet Major, and his name appeared in Despatches. He was again mentioned in 1906 for service in Northern Nigeria and received the rank of Brevet Lieutenant-Colonel.
He went to the front at the beginning of the war in command of his battalion, and was wounded on 22nd of October 1914. He returned to France in December, and at the end of February 1915 was appointed to command the 11th Infantry Brigade. He fell in action near St. Jean, near Ypres, on April 27th 1915.
General Bulfin, Commanding Officer of 28 Division, recounts what happened: “I saw poor Julian Hasler on the 27th April; the place was being heavily shelled. I sent him up Grogan and Le Preu, my GSO2 and GSO3, to help him, and some signallers, but all the lines were constantly cut so I ordered him to get out as soon as it was dark. He was killed about 9 p.m. that night: he could have got out at 6 p.m., but delayed.” He had twice been mentioned in Despatches.
He married Edith Gwendolin Orr-Ewing, eldest daughter of Captain John Orr-Ewing of the 5th Dragoon Guards. They had two sons.
- Surname: Hasler
- Forenames or initials: Julian
- House: B
- Years in School: 1882-1885
- Rank: Brigadier General
- Regiment: East Kent Regiment
- Date of Birth: 16th October 1868
- Date of Death: 27th April 1915
- How Died: Killed in action
- Location in War Cloister: Outer H2
- Decoration: NA
- Burial Site: WHITE HOUSE CEMETERY, YPRES: Grave III.A.5