Looking For Darby & Elizabeth Sullivan or O'Sullivan & Family

I am searching for evidence of Darby Sullivan, or O'Sullivan and Elizabeth Ann Sullivan or O'Sullivan (Born Snowdall).

Darby Sullivan or O'Sullivan

was supposedly born in Dunboy Castle, Cork, Ireland,

Birth Date: unknown.

Died: circa 1699 Westmoreland, Virginia, USA

Elizabeth Ann Sullivan or O'Sullivan (Born Snowdall)

was supposedly born in Cork, Ireland

Birth Year circa 1635.

Died: circa 1699 Westmoreland, Virginia, USA

Elizabeth's parents were:

William Snowdall

Born: England, Circa 1615

Died: Henrico County, Virginia, USA circa 1670

Elizabeth Snowdall, (Born Dawson) 

Born: Lincolnshire, England, circa 1620

Death: Henrico County, Virginia, USA, circa 1666

Burial: Norfolk, England, circa April 1666

Baptism: February 16, 1620 Little Bytham, Lincolnshire, England

Marriage to William Snowdall: July 05, 1655 Lincolnshire, England

Darby's & Elizabeth's Son:

Daniel Sullivan:

Supposedly Born: between 1663 and 1702, Cork Ireland, Died circa 1721 Westmoreland County, Virginia, USA

Daniel Sullivan's Wife Mary

Ann Sullivan (Born Christian): Birth: unknown, Death: circa 1721 Westmoreland, Virginia, USA

Daniel's and Mary Ann's Son: 

John Owen Sullivan supposedly born Cork, Ireland 

Birth Date: circa 1718

Died: Between 1804 and June 3, 1807 Davidson County, Tennessee, USA.

Information for these persons has been taken from MyHeritage.com though there are what appear to be several conflicting records that match or partially match those records.

Thank you,

James William (Bill), Cockrell III

USA