My family are from the Berwickshire area at the time you are interested in. My grandfather was born in Kelso on 23/6/1891(married to Robina Scott). His father was David (b. 11/6/1860)and married to Catherine Mcleod.It may be that his sister Janet Landells Kinghorn (b.16/8/1867)is the one mentioned in the reply by Fred Bell. Their parents were William Kinghorn (b.15/10/1837) and Elizabeth Halliday and their grandparents were Robert Kinghorn(b. about 1797) and Janet Landells.Robert's parents were Abraham kinghorn and Elizabeth Bell, Janet's were John Landells and Isabella Emans.
Hope this helps.
I realise that you posted this message a while ago but I have only got a computer recently and hope that I am not to late to help.