Hi again Tom
I've now had a reply from City of Edinburgh Council where they have given me plot and map of where Margaret is buried. She's in the same plot as her mother, sister, brother and 3 half sisters. I didn't know about the sister or half sisters so more to add to the tree!
The late Margaret Wood or Angus died 20th April 1890 aged 59yrs, interred in Section S Grave Space 89.
The late Margaret Thallon or Hendry died 20th December 1890 aged 35yrs, also interred in Section S Grave Space 89 (my G G Grandmother who was killed).
The late Catherine White died 12th June 1891 aged 20yrs, also interred in Section S Grave Space 89.
The late Annie Smith died 12th March 1897 aged 4days, also interred in Section S Grave Space 89.
The late Mary Angus Smith died 14th May 1902 aged 11 months, also interred in Section S Grave Space 89.
The late Wilhelmina Thallon died 18th April 1915 aged 51yrs, also interred in Section S Grave Space 89.
The late Alexander Thallon died 2nd April 1925 aged 66yrs, also interred in Section S Grave Space 89.
Because of these names I purchased some credits from Scotland's People and had a few to spare so thought I'd try the 1901 census (Tom, I know you had already looked at this but wanted to print off the page). Looking at young William's date of birth I realised he would have turned 17 by the time of the census and there is one match. A William Hendry, age 17, boarding with the family named Swanson. He was a grocers apprentice. I think this could be him. They lived at 32 Easter Road, Edinburgh - just across the road from where I lived 70 years later!
I also discovered Margaret's mother (Margaret Wood) was married three times (Thallon, White and Angus).
Planning to pay them a visit very soon.
Sharon