John and Elizabeth had 6 children baptized in Ashburton: Caroline Mary (1820), Emily Ann (1823), Charles James (1824 but born in 1823), Reginald William (1826), Henrietta Amelia (1826) and Marcella Elizabeth (1830, but born in 1828).
https://familysearch.org
When Caroline Mary (not named) is born, the Templers are living at Alston House, nr Ashburton.
Exeter Flying Post 13 April 1820 p4 col2
By 1829 they are occupying (and about to leave) a house in East Street.
Exeter and Plymouth Gazette 9 May 1829 p1 col2
John became rector of Teigngrace in 1832, succeeding the previous incumbent, also John Templer.
North Devon Journal 3 May 1832 p3 col4
On the 1841 census John and Elizabeth, together with Charles and Reginald. are at Ambrook House, Ipplepen. John is described as Clerk, born outside the county.
http://www.freecen.org.uk/cgi/search.pl
In 1842 Ambrooke House is available to rent, It is 'now in the occupation of the Rev. John Templer.'
Exeter and Plymouth Gazette 23 April 1842 p2 col6
Elizabeth died on April 1st, 1850. According to the Exeter Flying Post she died at Knowle, Newton Abbot.
Memorial in Teigngrace Church.
Exeter Flying Post 11 April 1850 p8 col6
John Templer, widower aged 62, is still at Knowles House, Highweek in 1851 with three of his children: John S Templer, Emily A Templer and Reginald W. Templer.
1851 census HO107; Piece: 1871; Folio: 640; Page: 16
John died in 1869, aged 80, at Highweek. He had been rector of Teigngrace for 37 years. His memorial in Teigngrace church says he is of Knowle.
Western Times 9 April 1869 p5 col4
Memorial in Teigngrace church.
Reginald William Templer, son of John and Elizabeth, was baptized in 1826.
Reginald William in turn had a son Reginald Gwynne Templer, born in Teignmouth in 1857. https://familysearch.org/
http://www.freebmd.org.uk
After the parliamentary elections of 1859 there were accusations of bribery and undue influence. Candidate Mr. Astell, who carried on 'a vigorous canvass' had agents including Mr. George Caunter and Mr. H. Tozer. Reginald Templer, a solicitor of Teignmouth was also involved, there to canvass tenants of his father, the Rev.Templer, who had property in Ashburton.
Western Times 30 July 1859 p2 col3
The 1881 census shows Reginald William with his wife and six children in Teignmouth - Reginald Gwynne is amongst them.
The Reginald G who has written in the book in the Virtual museum is presumably Reginald Gwynne Templer, the great grandson of Joseph Sunter.
For more on the Templer family, including a family tree and an image of Elizabeth's memorial, see Andrew Templer's website http://www.templerfamily.co.uk/html/family_tree.html - Accessed 12-12-2014