William Dalton and Sarah Travally

Stepney Green
cc-by-sa/2.0 - © Marathon - geograph.org.uk/p/6294695

William Dalton married Sarah Travally, daughter of Winnall Travally and Elizabeth Benbow. I've been unable to find a record of the actual marriage, however, there are records of four children to this couple: 

1. Thomas Benbow Dalton b. 6 May 1770
2. Sarah Dalton b. 22 May 1778
3. Martha Dalton b. 2 Oct 1780
4. Ebenezer Dalton b. 16 Aug 1782

The records for these children are unusual. Those in the set, 'England Births and Christenings, 1538-1975' do mention Saint Dunstan and All Saints Church, Stepney (as in parish geographically), but they do not follow the usual format of Christian baptisms and specify the dates as birth dates, not christenings. 

They each also include the information: Maternal Grandfather's Name, Winnal Travaly and Maternal Grandmother's Name, Elizabeth, so we can have no doubt that these are the children of this couple and their pedigree. 

Also for each one is a further record in the set, 'England and Wales Non-Conformist Record Indexes (RG4-8), 1588-1977', which specified each child's birthplace as "White Horse Street, St Dunstans Stepney, Middlesex."

"White Horse Street was the main street of the medieval village of Stepney, centred around St Dunstan’s Church. Until the nineteenth century, although there were buildings along White Horse Street itself, the surrounding area was mainly open fields." [Source]

There were witnesses to all these birth records too, which in all four cases were Elizabeth Gabbedey and Esther Travally, both Sarah's sisters. 

These records are from Dr Williams' Library Registry; Registers of certificates, an early birth register of Protestant dissenters. Initial searches tell me that, "Following England’s split with the Roman Catholic Church during the reign of Henry VIII and his establishment of the Church of England, Protestants of other faiths, Catholics, Quakers and Jews were considered Nonconformists."

It was the burial of Ebenezer Dalton, who died on 17 Apr 1828, aged 47, and was buried at Shadwell, Ebenezer Chapel (Independent), a Congregational Chapel, which suggests which flavour of non-conformist. See: Independent / Congregational Chapel Watney Street ~ Coverdale & Ebenezer, Bigland Street.

George Dalton and Hetty Trevail

Ugborough, Devon
cc-by-sa/2.0 - © Jonathan Billinger - geograph.org.uk/p/623840

Hetty Trevail, the one surviving daughter of Joseph Trevail and Eliza Roach, his second wife, married George Dalton, in Plymouth, in 1893. This was not George's first marriage. George, purportedly from Fareham, Hampshire, had previously married Sarah Jane Rogers, in Plymouth, in 1869, with whom he had a son, William John Dalton in 1870. Sarah Jane died, aged 40, in 1892.

George and Hetty had two sons:

1. Silvanus Henry Dalton born 1894 (died 1923, aged 29, in Totnes)
2. Victor George Trevail Dalton born 30 Aug 1902, bap. 11 Nov 1903 at the Anglican Church of Emmanuel

Again, although obviously no proof, it would be hard to imagine that there was no familial link with the use of that unusual given name of Silvanus. 

In 1911, George Dalton (62) Farmer, Hetty (49), Silvanus (16) Farmer's son working on farm and Victor Dalton (8) at School, were living and working at Stone Farm, Ugborough, Ivybridge, Devon. 

It would appear George Dalton died, aged 90, in 1938, in Gosport, Hampshire.

Hetty Dalton, widow, in 1939, was living with her son, Victor, Dairyman Grocer And General Shop Keeper at 2 Lipson Avenue, Plymouth.

Hetty Dalton of 2 Lipson Avenue, Plymouth, widow, died on 15 Jan 1945 at The City Hospital Plymouth - originally opened in 1858 as the Plymouth Workhouse. She left £3224 12s 1d (£3,224 in 1945 is worth £142,736 today) to John Archibald Dave, commercial traveller. [As yet no idea who he was.]