Cameron/McDonald 'brick wall'

[Cam7]

Hello, I'm new to this site!
I am desperately seeking info on a Samuel Cameron and his wife Mary McDonald (keppoch. great aunt of Mary MacKillop)
They are the parents of Thomas Ross Cameron born 1821 (my gg grandfather) Thomas married Annie mcdonell in fort Augustus and emigrated to New Zealand via Australia in the 1850's with their son Archibald (my g grandfather) and a few brothers aboard the ship the 'sea'.
Samuel and his wife Mary I believe farmed in the Lochaber area in the 1830s and apparently were married in the USA.
Any information regarding Samuel and Mary would be greatly appreciated as I have hit a rather big brick wall. Thanks!!

[garstonite]

Hiya Cam and a warm welcome to Rootschat.
do you have any other children for Samuel and Mary ?...if so could you list them please as it may help us find the family location
cheers
ADDED
As an example - is this location familiar ?
Name    Martin Cameron     
 Gender     Male   
 Christening Date     20 Jun 1812   
 Christening Place     KILMONIVAIG,INVERNESS,SCOTLAND   
 Father's Name     Samuel Cameron   
 Mother's Name    Mary   

[Cam7]

Thank you, and yes siblings of Thomas are as follows
Sister Hannah Cameron married a Donald Cameron gamekeeper 'Glendoe' 1839
Sister Mary Cameron married John McDonell
Brother Angus Cameron
Brother Alexander Cameron
(All 3 brothers married at the same time)
Thomas also had an illegitimate son named John with a woman named Anne Fraser before he married Annie McDonell.
Yes kilmonivaig is familiar not too sure about a Martin though

[garstonite]

would it be possible to list the children by year of birth and where born please - this way we can get a good idea around the time that Samuel and Mary married 
Thomas Ross Cameron was b 1821 - but where ??

[Cam7]

according to census in 1841
Thomas Ross 15
Alexander 30
Angus 25
Mary (mother) 60

[garstonite]

any idea which town they were born ?
as Alexander is 10 years older than Thomas - we now have an idea that Samuel and Mary married presumably 1800 - 1811 - if we knew where the children were born we can have a look in that location for a marriage of their parents  - or were all the children born in Scotland ??...any in the USA ?

[Cam7]

In the 1851 census Mary is 70 born in kilmonivaig inv
Living with daughter Mary and husband John mcdonell
Her occupation 'farmerly Das wife'
Civil parish boleskeine abertarff
Oh and on the 1841 census it says Thomas was born Inverness and address ardachy

[garstonite]

the only USA connection I can find is
Samuel Cameron
Green Regiment Mounted Infantry
Virginia Militia
1812 - 1815
Sergant - Private
"fought in the War of 1812 "(against England - it lasted 32 months )
here is the image - do you think it might be your Samuel ?...any children born 1812-1816~??...if not it could be your Samuel 
https://familysearch.org/ark:/61903/3:1:33S7-95C6-5BT?mode=g&i=2324&cc=1916219
ADDED
I notice there is 5 years between Alexander b 1811 and Angus 1816 according to the 1841 census ??...could Samuel have been away fighting in USA during the 5 year gap  ?

[Cam7]

I was thinking the same thing but then looked at daughter Mary and deduced off of the census that she was born 1813 
There is another theory that they had connections with Canada so maybe Canada and USA have been muddled somewhere down the line? Maybe it was Canada and not USA they were wed?