In 1930 he was living in Amesbury, Wiltshire341.
“Death of Mr. D. T. Chadder. – The death took place suddenly on Sunday morning of Mr. Donald Thomas Chadder, of Mount Road. He had only complained of a cold, and went to bed early on Saturday night. He was feeling no better on Sunday morning, but later, upon his wife going upstairs, she found he was dead. He was at work at the Austin Motor Works until 5.30 p.m. on Saturday. He leaves a wife and two children, who have the sympathy of all Fairfield people in their sad and tragic bereavment. Mr. Chadder was the son of Mr. and Mrs. S. Chadder, Torcross, near Kingsbridge, Devon. The funeral took place at Fairfield on Wednesday afternoon”173.
“Deaths… …CHADDER. – January 3rd at Highlands, Mount Road, Catshill, Donald Clements Chadder aged 32 years”2442.

Donald Clements Chadder, a bachelor aged 26 whose occupation was Aircraft mechanic (Royal Air Force), married Irene May Chadder, a spinster aged 24. The groom's address was Amesbury, Wiltshire and the bride's address was Ivy Cottage, Fairfield. The groom's father was Thomas Clements Chadeer and his occupation was tailor. The bride's father was John Davies and his occupation was bricklayer. The marriage was performed at the St Mark's Church, Fairfield according to the rites of the Established Church after banns. The ceremony was performed by D. A. Downend, rector. The bride and groom both signed. The marriage was witnessed by John Davies (signed) and Francis Edgar Harrison (signed)341.