Thanks to both ev & bleckie
The child's name is Mary Gardiner Oswald born 29 stormont st.perth to Arthur Oswald & Margaret King , marriage was june 1880 forest hall , london. However I can't find this marriage & surprising in the 1881 census Margaret King is single staying at Trottick ,Mains, Forfar working in the mills, in the same house the other boarder is her half sister Isabella King.
I have not been able to find Mary Oswald nor her mother Margaret Oswald in the 1891 census anywhere, they are in Cupar in 1901 & 1911 censuses. Margaret was born 1853 Dunblane to George King & Helen Gardiner.
Any help would be much appreciated.
regards
Silvercraig