Thread: Smith /Welsh Family

My grandmother Mary Ann Smith was born 1 August 1899 in 17 Middleton Place Glasgow Dennistoun Glasgow Scotland. This was the address on her birth certificate which someone else recently found on SP. Her parents were Nicholas Smith and Mary Welsh the certificate was registered under Welsh as the parents were not married., both parents signed the certificate. It also said that she was the 5th born child. There was a note on the certificate saying that Nicholas was the occupier at this address.
Mary married John jseph Downie in JUne 1921 at St John's Portagul st Gorbals her certificate said that Nicholas was deceased. her address at the time of marriage was 29 Salisbury st.
Can anyone help me find her siblings or parents?
Thanks Angela