I posted to this thread because I am certain they came from Londonderry (Gortnessy specifically). Daniel Ferguson died in Gortnessy 17 Sep 1862. He (as well as Agnes and her siblings John, Hannah, Andrew and Jane are mentioned previously in this thread, which is how I landed here. I am not sure how they all tied into James.
Yes, the headstone link is for the Agnes Ferguson I am referencing.
I do believe the came to the US sometime between 1859 and 1860 as her daughter Maria was born in Ireland Jan 1859, and next child Hannah was born in New York May 1860. I have not had any luck locating a ship manifest for them.
The birth record for Julian Saadersfield is for a different family. Agnes Ferguson married Johann/John Sandersfield and they had children named Maria, Hannah, Agnes, John, Robert (my 2nd great grandfather), Anna, and Henry.
The only reference I have found to the Sandersfield/Ferguson marriage is a year of 1854 on Ancestry, but with no source attached and it also says they were married in Michigan, USA in 1854 and we know they were not yet here so I'm not sure that can be relied on as accurate.
If you think a new thread would be most helpful, I'd be happy to attempt that. I'm new to this site and still trying to figure everything out. Thank you so much for your detailed response!
Have you posted on this thread because it covers the Ferguson name and you believe you may be linked to James Ferguson or because the family you are seeking came from Co Londonderry originally?
Hopefully we may be able to get you some information but unless you have a strong suspicion that your Hassan/Fergusons are from Co Londonderry & connected to James Ferguson then I would suggest you ask a moderator to make a separate thread on the Derry Board called 'Daniel Ferguson and Hannah Hassan.'
Is this Agnes' headstone etc?
https://www.findagrave.com/memorial/77281123/agnes-sandersfield
Some of the family including a granddaughter on the 1900 US census.
https://www.familysearch.org/search/ark:/61903/1:1:MSMW-MPX
On this record Agnes states that she came to the US about 1860?
Have looked at the passenger lists for her?
It looks as if the name Sandersfield may have originally Saadersfeld
https://www.familysearch.org/ark:/61903/1:1:27Y2-KSY
Does this record tally with what you know about the family?
So a daughter, Juliann, was born in May 1860 so that may have pushed Agnes' arrival earlier than 1860 or else she married prior to coming to the US.
Have you found Agnes' marriage?
Just a point of interest that Agnes/Nancy in Ireland are often interchangeable
ETA Even though spelling was fairly fluid I am used to seeing Hassan spelt with an 'a' as the last vowel.
ETA 2 The Hassan and Ferguson names are quite well known in Co Londonderry.