William Northcott and Emma Jane Wood

Fore Street, Cullompton with the grade II listed White Hart
cc-by-sa/2.0 - © Stephen McKay - geograph.org.uk/p/5497724

William Northcott married Emma Jane Wood, daughter of Henry Wood and Mary Jane Melhuish from Kentisbeare, Devon, in 1896. Five years earlier, in 1891, William Northcott (19) Blacksmith, had been a lodger at The White Hart, Fore Street, Cullompton, but I've been unable to find him before that. 

William and Emma's children included: 

1. Maud Wood, Emma's illegitimate daughter, born 1894 and baptised on 19 Feb 1895, when she was 14 months old, in Kentisbeare
2. William Henry Northcott born 8 Mar 1897 (not seen after 1911)
3. Arthina Northcott born 14 Oct 1898, bap. 2 Nov 1898 in Cullompton
4. Elizabeth Northcott born 1900 (died 1900 aged 0)
5. Charles John Northcott born 23 Feb 1902, bap. 23 Mar 1902
6. Albert James Northcott born 30 Aug 1903, bap. 16 Sep 1903 in Cullompton (died 1904, aged 0)
7. Florence Northcott born 25 Oct 1907, Emma's illegitimate daughter

The retreat, Cullompton
cc-by-sa/2.0 - © Derek Harper - geograph.org.uk/p/4955997
The neighbouring house in the row on the left, also listed, is Church Cottage.

In 1901, William Northcott (31) Blacksmith Journeyman from Branscombe, Devon (not identified relevant birth), wife Emma Jane (30) from Kentisbeare, along with Emma's daughter, Maud Wood (7), William Henry Northcott (4) and Arthenia Northcott (2) were living at Church Cottages, Cullompton.

William Northcott (33) died and was buried on 15 May 1904, in Cullompton.

Charles John Northcott was registered at Elmore School, Tiverton in 1908, with his address as Elmore Workhouse. In 1911, Emma Northcote (sic) (37) Widow, Laundress was living at 7 Rices Court, West Exe South, Tiverton with William (14) Errand Boy, Arthina (12), Charles (9) and Florence (3). 

Charles John Northcott (17) joined the Royal Tank Corps on 19 Aug 1919.

In 1917, Emma J Northcott had remarried to Arthur Southcott. What were the chances?

Arthur Southcott, born 30 Jul 1883, bap. 9 Aug 1883 at St Peter’s Church Tiverton, therefore 12 years younger than his wife, was the son of Frederick Southcott and Eliza Harris. 

Arthur Southcott died in 1935, in his early 50's.

In 1939, Emma J Southcott, Widowed again, was living at 7 Bartows Causeway, Tiverton with Dorothy A Evans (Arthina Northcott had married Ernest F J Evans in 1918), Laundress, and Dorothy Florence Northcott (b. 16 Nov 1916 - mother's maiden name was Northcott, so appears to be Arthina's illegitimate daughter), who worked at the Lace Factory and one other person. Emma Jane Southcott died in 1947. 

Tiverton : Bartows Causeway
cc-by-sa/2.0 - © Lewis Clarke - geograph.org.uk/p/5699381

Charles John Northcott and Emily Stone

Tiverton : The Barley Mow
cc-by-sa/2.0 - © Lewis Clarke - geograph.org.uk/p/1601875

Emily Stone, only daughter of Charles Stone and Emma Middleton, sister of Charley, Albert and Harry, married Charles John Northcott, son of William Northcott and Emma Jane Wood, in Tiverton, on 26 Oct 1929. 

The couple had one daughter, Beryl Emily Northcott, born 19 Feb 1930.

In 1939, Charles John Northcott, Coal & General Carter, wife Emily and daugher, Beryl, were living at 93 Barrington Street, Tiverton, Devon (next-door-but-one to The Barley Mow, partly over the entrance to Martin's Lane).

Emily Northcott of 93 Barrington Street, Tiverton, died, aged 66, on 22 Dec 1967. Beryl Emily Northcott died, aged 44, in 1974, leaving a daughter. It appears that Charles John Northcott's death has not been registered, which I don't find surprising with just his young granddaughter left by then.