Hello Chempat, sorry I live in Australia hence the time of the posts. After more investigation I have realised that the William Taylor I mentioned who died in 1849 is not correct. I downloaded a copy of his will and his wife is Mary, not Helen, so different family.
Regarding my 2nd Great Grandmother, I have a copy of her Death Certificate and her name is listed as Mary Taylor Smith and that she had been in the Colony of NSW for 50 years. This makes sense as she was listed on the 1861 Census aged 10, and does not appear on the 1871 Census. She died on 6th February 1918 aged 67, so she came to Australia in 1867/68 when she was approximately 17. I have been unable to determine how she arrived, i.e. as a free settler or convict. She married David Smith and they had 3 boys, one of whom is my Grandfather. David was born in Australia. On her Marriage Certificate her name is Mary Taylor Smith, Spinster. No information about her Mother or Father is given, just her occupation of domestic duties.
The family you mention in the 1841 Census may be the same, although Helen Taylor is listed as 25, and in the 1851 Census she is 38 so a difference of 3 years, which could be OK as her birth date is given as Approx 1813. There could have been two children named Mary with the first one dying as an infant. I have other relatives in my tree who have had children die, only to name a later sibling with the same name, can be confusing.
I have a copy of the 1851 Census, but it is hard to read some of the words. I got the word Baiddey from the Ancestry website search on the census and it must have been transcribed as that. Helen is listed as Head of the House up until the 1881 Census.
Thank you so much for your reply. I will keep digging but would appreciate any help.
Kind Regards
Susan Leckie (nee Smith)
PS Just as a bit of background, my father-in-law is Scottish and also lived in Paisley, small world isn't it.