Recapping your recap;
Father:
John Robbie was born in 1782 in Old Machar, married Helen Barclay on 4 October 1801 in St James Episcopel Church, Stonehaven, joined the Royal Artillery Drivers in April 1801 in Aberdeen, discharged in January 1819 with pension. They provided paid passage for him, his wife and child back to Scotland from Woolwich where he was discharged. Returned to live in Barclay Street, Stonehaven and became a hand loom weaver, and died on 23rd July 1849 in Stonehaven.
Son:
John Robbie was born on 9 September 1804 in St Leonards, Colchester, Essex, England, while father was stationed there with the Army. He married Amelia Simson/Simpson on 28 September 1825 in Arbroath, Forfar. He enlisted in the 25th Regiment of Foot on the 10 February 1826 at Montrose. He was medically discharged in 1837, and died in a St Clements Infirmary on 21st August 1838. There was only one child, who was born 21 July 1826. Amelia died on 11 May 1831 in Old Deer, Buchan.
Grandson:
John Simpson Robbie was born 21 July 1826 in Arbroath, Forfar, and believe that after Amelia died in 1831 when he was 5, and because his father was stuck in the army, that the grand-parents then looked after him. Although he was not with them in 1841 census, I did find a John Robbie aged 15, born Angus, working as Ag. Labourer on Cortachy & Clova, which may very well be him. When he married Ann Ballantyne in 1852, he was shown as a Prison Warder. They travelled to Australia in 1855 with their son John Ballantyne Robbie and settled in Bombala, NSW and had a further 10 children.
I have the army records for both Father and Son.
With regards to Helen, the Family Search record of her birth showed she was christened at St Cyrus on 13 October 1788 but doesn't show birth & birthplace details. You could be right regarding Straton, as the info I first had was Trawton, but could find no such location, and after a search of the area on a map, felt that it may have only been a transcription error and should have been Crawton as it was closeby.
Also I made a mistake with her death detail as she died (I assume at home) in Stonehaven and not Crawton as I had indicated. (it was late at night and tried to work from memory, sorry). I am not sure where the date for her death came from, but it is possible that John Simpson Robbie may have had it recorded in his diary as I have heard through the family that he had one. Also, he probably would not have left for Australia until she had died, and her Will & Testament is dated December 1852. I cannot find any official record of her death with the normal rescources available from here. In Scotlands People, her death is in neither Pre1855 or Post 1855.
Hope all the above makes sense, and would love to still find confirmation of Helen's correct birth & death details. Interesting about the age of consent for marriage up to 1929. Maybe the fact that she was only 16 when their son was born had an affect on having more children. Who knows.
Regards,
Wildcats13