Mauritius,
Harry may have died in 1907, I found the burial details shown below which may possibly be him.
Leeds General Cemetery (Woodhouse)
Grave number 376
17th July 1907 burial of Harry Suddaby aged 40 years. Died 15th July 1907. Cause of death hemorhage (sic.) Residence Verdun Street. Parents names George and Esther Suddaby.
I cannot however find a gro reference for the registration of Harry's death.
I think that I may have also have found the registration of Esther's death and her possible burial, although unfortunately the burial details are not as detailed as Harry's so it not possible to be completely certain that it is her.
Esther Suddaby (mistranscribed as Suddary)
Estimated birth year 1838
Quarter and year of registration of death Oct-Nov-Dec 1907
age 69 years
Registration district Leeds
County of West Yorkshire
Volume 9b Page No 293
Beckett Street Cemetery, Leeds
Grave Number 8877
Burial of Esther Suddaby. Burial date 1907. Grave type consecrated.
I haven't found any information regarding Esther Louise but will continue to search.
I hope that this information is of use to you and if I can be of any further help, please just ask.
Best Wishes
CJL