Hiya...and welcome to Rootschat Patches....
if the 1901 census family is yours .....as the children were born in Norwich ,I checked for a marriage for George Sugden to Mary

?? in Norwich around 1886 -( George jnr being b in 1887)..found this
George Sugden to Mary Edith Dove ...June qtr 1884 Norwich 4b 312 .....
also this
Ada Marion Wiseman was born Dec Qtr 1888 Norwich 4b 133
so George was 20 and Ada 18 when they married....NO SUGDEN / WISEMAN children born after 1911....3 possibles 1907-1911
Stanley William Sugden b sep qtr 1908 norwich 4b 151
Lucy Sugden b mar qtr 1909 Norwich 4b 157 (so these can`t be siblings-too close for birth dates)
Ruby E Sugden b june qtr 1911 Norwich 4b 119
so it would appear that George and Ada had either 1 or 2 children ...no more...do you have any children for George and Ada

allan

ADDED maybe someone can find Ada Marion Wiseman in the 1891 census in Norwich...but be careful as there was an Ada May Wiseman born in the same qtr in 1888...so Ada M Wiseman may be confusing...it has to be ADA MARION WISEMAN.allan