2 Ross Brothers marrying 2 Hamilton sisters

Question

1770-1780, Ireland. 2 brothers (surname Ross) married 2 sisters with the last name of Hamilton.  Unfortunately, I do not possess given names. 

One of the Ross/Hamilton marriages produced 6 children:

1. Elizabeth (Bessie) Ross, b. 1824 Ireland.  Married John Gallagher, b. 1824 Ireland. Marriage produced 8 children. 
2. Andrew Ross, b. A&R 1800 Ireland
3. James Ross
4. Mary Ross, b. 1820, Ireland d. 1820. Died upon arrival to PA
5. Oliver Ross, b. In Ireland.  Married Eojila Anderson & produced 4 children. 
6. Nancy Ross, b. Ireland. Married John Painter. No children from marriage 

Comments

You can best start by adding your parents, then their parents, back to these people in order to make sure you make the correct attachments.

The Scottish are gonna have you dear when you get over there and tell them you're Scotch!  :D

Answer 1

John Ross
Birth:  dd mm 1826 - Tyrone, Ireland (Northern Ireland)
 

F:	Crawford Ross
M:	Margaret Hamilton

 

Answer 2

Andrew Ross

United States Census, 1880

Name:	Andrew Ross
Event Type:	Census
Event Year:	1880
Event Place:	Freehold, Monmouth, New Jersey, United States
Gender:	Male
Age:	74
Marital Status:	Married
Race:	White
Race (Original):	W
Occupation:	Retired Carpenter
Relationship to Head of Household:	Self
Relationship to Head of Household (Original):	Self
Birth Year (Estimated):	1806
Birthplace:	Ireland
Father's Birthplace:	Ireland
Mother's Birthplace:	Ireland
Affiliate Name:	The U.S. National Archives and Records Administration (NARA)