Bertha is with Arthur wellings in the 1939 census
I have found Minnie with Adams but according to the birth of there children mothers maiden name is Minnie endicott
I am a bit confused
Hope this helps they are a different Charles and Minnie Adams from his army record they married 1917 and witnesses to their marriage were Henry & Minnie Endacott (Minnie’s parents)
Charles Henry ADAMS age 28 Stonehouse, Devon
Marriage 21 Oct 1917 Plymouth
Document Year: 1919
Regimental Number: 01488
Regiment Devonshire
Minnie ENDECOTT SpouseCharles E H Adams Child born 31 May 1918
Doreen M Adams Child born 9 Jul 1920
Here’s Minnie birth entry and with parents on census
MINNIE ENDACOTT mmn BROOKING
1894 J Quarter in PLYMOUTH Volume 05B Page 223
1901 c Piece: 2093 Folio: 95 Page Number: 65
Henry Endacott 35
Minnie Endacott 36
Ernest H Endacott 9
Lilian Endacott 8
MINNE Endacott 6Florence Endacott 5
Edith Endacott 4
Beatrice Endacott 10 months