nzjohn1 thankyou for the information provided in your post.
Much of it I already had but there are some welcome additions most notable of which is probably the fact that Martha Trewheellar was found in the 1841 and 1851 Census.
I have now found her myself but it was only because you mentioned that she was with Johns relatives in each case.
Probably would never have found her otherwise given the way her surname was interpreted and entered in the index!
In 1851 I read it clearly as Trewheller yet the indexer transcribed it as Trawhilled and in 1841 I hesitate to think how it is indexed as I have tried many variables with nil result.
However, she is found!
Now for some questions, comment and additions from myself.
I have to question the comment that John and Ann were married at Penryn as I have searched all the PRs and never found that detail.
I think it more likely they married somewhere in London or possibly Kent but, again, I have not found a record of the event.
But is it possible they were never married in England at all?
Perhaps John had been to Europe before and they were married there - I don't know.
But I do suspect that Ann 'may' have been Ann Coulter - a suspicion that perhaps cannot be confirmed until we locate details of the marriage.
Many years ago I had correspondence with a Dr Hugh Torrens from one of the Universities in England and he supplied me with some further information on the family as did Thurston Trewheellar in NZ who had copies of correspondence from Nicholas Trewheler.
When I was in London in 1994 I did some research and found baptisms for the first two known sons of John and Ann.
Richard Truewheellar
Born Woolwich, Kent 9th Novembr 1810
Baptised St Mary Magdalene, Woolwich 14th July 1811
John Coulter Trewheellar
Born Woolwich, Kent 23rd March 1813
Baptised St Mary Magdalene, Woolwich 23rd March 1813
Other children were William Frederick, Robert Snow, Michael, Charles and two daughters.
Richard was an Officer in the Russian Pioneer Guards and I have a photo of him in his uniform.
Married and, as you say, had one son - Nicholas. (More later.)
John - according to the younger Nicholas John was born in Russia (Kent PRs disprove this) unless John Coulter Trewheellar died young and there was another John born later.
However, John apparently had no issue and nothing more is known of him.
William Frederick was a Subaltern in the Lancers and never married. He was killed sometime before 1863 during a Polish rising. (Polish risings were 1830, 1846, 1848, 1861 and 1863).
According to Dr Hugh Torrens William left the Institut fur Wegeingenieure as an Engineer-Lieutenant in 1829 with his brother Richard.
Robert had no sons and, again according to Dr Torrens, left the Institut fur Wegeingenieure in 1838, possibly as an Engineer-Lieutenant like his brothers.
Michael entered the Public Works Department and married a Russian girl. He had at least one son.
In letters from Nicholas Trewheler it is stated that either Michael or his son moved to Omsk and Nicholas only remembers having seen two members of that family and did not know if the family survived the Revolution.
Charles was supposedly born in Russia but nothing further is known of him.
Nothing is known of the two daughters.
Richard Trewheellar (b. 1810) died at Montreux, Siwtzerland 21st October 1872, age 62. (I have a copy of his Death Certificate)
His son, Nicholas, was born about 1843 in Russia and married Sarah Jane Hughes about 1873.
Sarah was apparently born in Sussex about 1845 and, according to Nicholas Trewheler, had a brother with family living in England.
This brother may have been Rev. Harry George Hughes of Norwich who was her attorney as mentioned in the Will of Nicholas Trewheler.
And Sarah was supposedly of Welsh descent.
Sarah apparently died in Oslo, Norway in 1926 at the age of 81.
Nicholas died at 5 Ordinarnaia St, Petrograd on 23rd October 1914. (I have a copy of his Will)
They had five children.
Vladimir - born about 1875, joined the Russian Navy and was killed in 1905 in the Yellow Sea during the Russo-Japanese war.
Katherine - born Russia and did not marry.
In a letter from her brother Nicholas to Thurston Trewheellar in 1937 he said she was living in Norway and still a spinster. She is mentioned in his Will (1960) as sole beneficiary unless she predecease him.
In a codicil dated March 13, 1962, Nicholas mentions his nephew, George von Veymarn as solve beneficiary.
I now know that Katherine died in 1954 and was buried in the Cemetery at Vernon, British Columbia, Canada in the same plot as her brother Nicholas.
Anatole - born Russia about 1883 and died sometime before 1957, presumably in Rhodesia.
He was a Civil Engineer and had completed his studies in England.
He married Blanch Maria Dodd at the Paddington Register Office 1st October 1930 (I have Marriage Certificate) at which time he was living at the Court Royal Hotel, Lancaster Gate.
Blanch had been previously twice married to 1. Newton and 2. Haworth and she died at Pretoria, South Africa in 1957.
Elizabeth - born Russia about 1886 and in 1939 was living in Calgary, BC with her husband.
Married Paul von Veymarn 29th August 1908 at Croydon Register Office and the marriage was witnessed by Sarah Jane Trewheler (mother) and Anatole Trewheler (brother). (I have that Certificate)
One known son, George, but I known nothing more of him at the moment. I presume he was born in Surrey but have not checked.
Nicholas - born about 1888 in Russia and was also a Civil Engineer having studied in England.
Author of several letters to Thurston Trewheellar in NZ and died at Vernon, BC, Canada 20th July 1971.
His address then was 4000-25th Av, Vernon, BC according to his Will of which I have a copy.
Buried with sister Katherine and never married.
The only other information I can provide on this family is something I found a couple of days ago whilst searching TimesOnLine.
29th January 1908 - The Princess of Wales's Appeal
Captain Nicholas Trewheler of the Russian Imperial Navy donated 2 pounds, 12 shillings and 9 pence.
This would be the elder Nicholas who married Sarah Hughes.
5th March 1918 - The London Gazette - Special Reserve of Officers
2nd Lts to be Lts - A. Trewheler
14th July 1920 - The London Gazette - Special Reserve of Officers
3rd Regiment Lancashire Infantry
N. Trewheler relinquished commission as Lt.
The NZ part of the family.
I have been to New Zealand and met Thurston Trewheellar whilst I was there after having corresponded with him for a number of years.
You will probably know as much as, if not more than, I of the family in NZ so I will concentrate mainly on the earlier isde of things in England.
No baptism record has ever, to my knowledge, been found for Thomas Trewheellar but we know he was probably born about the 1790s and was as far as I know the youngest of four children to Richard and Martha (nee Snow) who were married at St Gluvias 24th July 1784.
I can take this family back for you if you wish.
The other two siblings were sisters.
Martha Tremeling Trewheellar was baptised 27th May 1787 at St Gluvias and was buried at Stoke Damerel, Devon 2nd November 1791 which suggests the family had left Cornwall possibly for good by this time.
The other sister was Ann who was baptised at Stoke Damerel 31st January 1790.
According to Nicholas Trewheler Ann was married in Russia to someone named Clark and I know nothing more.
But back to Thomas.
Married Dinah Theresa Goodson 31st August 1822 at St Mary, Newington, Surrey.
Dinah is supposed to have died in September 1835 but I have no confirmation of this or any further details.
I do know that Thomas remarried.
26th July 1836 at St Mary, Edge Hill, Lancashire
Thomas Trewheellar, widower
Mary Ann Callan, widow (nee Parker)
Thomas was deceased prior to 1850 when Mary Ann Trewheellar, widow, married Thomas Beech at St Mary, Edge Hill, Lancs. on 24th December 1850.
As I have been unable to find Thomas in the 1841 Census it is difficult to know just when he died. There is also no record of a death for him in the St Catherine's House Index.
Thomas and Dinah had four children:-
Richard Barnes born 9th June 1823 at Walworth, Surrey and baptised St Mary, Newington 12th October 1823.
The family was then living at Kennington St, Walworth.
Dinah Theresa born 17th April 1825 and baptised 26th March 1826 at St Mary, Newington, Surrey.
At this time the family was living at Marylebone, MDX.
Martha Ann of whom you know.
Thomas you also know although I am unsure if you are aware that he married twice also?
He died at Picton, NSW 14th March 1889 and was buried in the Picton Cemetery 15th March 1889.
10 children on whom I have quite a bit of information if you require it.
Finally, for this note, I would like a copy of the Death Certificate for Martha Dakers.
Would it be possible to scan a copy and send it to me by email??
And I would also like what details you have about her children.
I know she had a son Henry Thomas James Dakers in 1855 plus an unnamed child (sex unknown) and another son but that is all I know.
Must leave you to digest this and we can discuss it more at a later date.
CT