Here are all the parish register entries I have for them.
John Morton/Scott [illegitimate] son of John Morton and Isabel Scott, baptised 27 September 1776 - Long Horsley
John Murton and Sarah Scott, married 1 September 1777 [bride's name incorrect, should be Isabel] - Long Horsley
Jane Morton daughter of John Morton, buried 2 March 1779 - Morpeth
Mary daughter of John and Isabel Murton, baptised 24 September 1780 - Morpeth
Ann Murton, daughter of John Murton, Hebburn, baptised 29 December 1782 - Hebron
John Morton, son of John Morton, Hebburn, buried 14 March 1784 - Hebron
Ralph Murton son of John Murton, baptised 20 September 1785 - Long Horsley
Ralph Murton son of John Murton, buried 7th of November 1785 - Long Horsley
Jane Murton daughter of John Murton, baptised 8 November 1786 - Long Horsley
Andrew twin son of John Murton of Sheepwash and his wife Isabel Scott of Scotland, baptised 27th of April 1794 - Bedlington
John twin son of John Murton of Sheepwash and his wife Isabel Scott of Scotland, baptised 27th of April 1794 [married Ann Smith on 2nd of September 1833 at Newcastle All Saints] - Bedlington
Elizabeth daughter of John and Isabella Murton of Choppington, baptised 10th of May 1795 [possibly buried at Hebron 16 December 1821] - Bedlington
Isabel 5th daughter of John Murton, Hebburn, N. of Tranwell Morpeth p., by Isabel Scott, N. of Cartington, Rothbury, born June 6th 1798, baptised 1 July 1798 - Hebron
Isabel Murton, wife of John Murton, labourer, aged 45 years, died Jan. 15th 1804, buried 17 January 1804 - Hebron
Ann Morten, West Forest, daughter of John Morten, labourer, aged 25 years died Sept. 14th 1809, buried 17 September 1809 - Hebron
John Merton, West Forest, labourer, aged 58 years died Feb. 20th 1812, buried 23 February 1812 - Hebron
Elizabeth Morton, Long Framlington, age 26 years, buried 16 December 1821 - Hebron