Source: Joined Battalion January 1917 per War Diary.
Resting in Peace Far From Home, A biography of Lt. D.C. Wright by Roger Coleman.
Note that the news stories may incorrectly attribute his service at Vimy Ridge to the 170th Battalion. This was the battalion he attested to and the War Diary indicates he joined the Battalion on January 1917. The 170th Bn. was absorbed by the 169th Bn. and was shipped overseas to be used as reinforcements for battalions in the line.
Lieutenant Wright flew a Sopwith Camel, registration number B5193 for the 28th Squadron, Royal Flying Corp when he was killed. It is unclear if this was due to enemy action or an accident.

LIEUT. D.C.WRIGHT.
Lieut. D.C. Wright, who has been serving with the R.F.C. in Italy, is reported missing. Word to that effect has been received by his mother at 98 Highland avenue. When the war broke out Lieut. Wright was one of the first to respond to the call. He went overseas in the spring of 1915 with an armored motor in the transport column. He later transferred to the infantry, in with he served as a Lieutenant in the 170th Battalion. he took part in the fight at Vimy Ridge, where he sustained a wound. Last summer he was invalided for several months as the result of trench fever. In December he went to Ital and was serving there til the present date. He has a bother overseas. Lieut. Wright was educated at St. Andrew’s College.
Source: Toronto Evening Telegram, March 5th, 1918.
LIEUT. D.C. WRIGHT DEAD
Fell Into Hands of Austrians While Flying in Italy.Lieut. D.C. Wright, of 98 Highland avenue, Rosedale, is reported dead, according to official Austrian reports. In February he was reported missing, his machine having disappeared over the Austrian lines while he was serving with a fighting squadron in Italy in the R.F.C. Lieut. Wright enlisted in 1915. He was first with an armored motor transport column, but transferred to the Infantry and fought at Vimy Ridge with the 170th Battalion. He was wounded, and was on convalescent leave last summer, but in December rejoined the forces in Italy. He was educated at St. Andrew’s College, and is a some of Mrs. J.D. Wright.
Source: Toronto Evening Telegram. April 18, 1918.
LT. D.C. WRIGHT KILLED
Toronto Aviator on the Italian Front is Reported Dead, Through Austrian Sources
Flight Lieut. Douglas Christie Wright, reported killed through Austrian sources, joined the Mississauga’s in 1915, and went overseas with the 170th as a signal officer. After the battalion was broken up he went to France in December, 1916. He was through most of the big battles and recommended for the Military Cross. He was wounded once and had trench fever after Vimy Ridge. His brother, Lieut. Bruce , is in the Royal Engineers. He was a graduate of St. Andrew’s College. His mother lives at 98 Highlands avenue.
Source: Unknown
LT. WRIGHT MISSING
Toronto Aviator Who is Serving On Italian Front Is Again in Casualty List.
Lieut. D.C. Wright, who had been serving in the R.F.C. in Italy, is reported missing. Word to that effect has been received by his mother at 98 Highland avenue. When the war broke out Lieut. Wright was one of the first to respond to the call. He went overseas in the spring of 1915 with an armored motor in the transport column. He later transferred to the infantry, in which he served as a lieutenant in the 170th Battalion. He took part in the fight at Vimy Ridge, where he sustained a wound. Last summer he was invalided for several months as a result of trench fever. In December he went to Italy and has been serving there until the present date. He has a brother overseas. Lieut. Wright was educated at St. Andrew’s College.
Source: Unknown.