Cochrane / Cofran

I'm unable to find documentation—primary or secondary—for the Ulster period (in pink).

Waldenus (Walter) de Cochrane (1240-1300) [1]
William de Cochrane (1285-1360) [1]
John de Cochran (1320-1380) [1]
Goseline de Cochran (1340-1400) [1]
William de Cochran (1365-1421) m Margaret Salisbury [1]
Robert Cochrane (1388-1389) m Judith Walls [1]
William Cochran (-1392) [1]
Robert Cochran (-c1450) [1]
Allan Cochrane (1432-1484) m Marion Stuart [1]
Robert Cochrane (1471-1539) [1]
John Cochran (-1538) m Elizabeth Semphill [1]
John Cochran (1490-1537) m Mary Lindsay [1]
John Cochran (1526-1556) m Agnes Rennie; to Londonderry, UlsterWilliam Cochrane m Elizabeth Montgomery
John Cochran (1550-1620)Elizabeth Cochrane m Alexander Blair, son of John Blair
James Hugh Cochran (1580-1650)Paternally Blair
from this point:

William Cochrane, 1st Earl Dundonald (-1685) m Eupheme Scott
James Cochran (1608-1647)Sir John Cochrane (-1707+) m Margaret Strickland
John Cochran (1628-1687) m Agnes SmithWilliam Cochrane (-1739+) m Lady Mary Bruce
Deacon John Cochran (1662-1747) m Lily Kilgore; to Londonderry, NH [2]Thomas Cochrane, 8th Earl of Dundonald m Jane Stuart
James Cochran (1713-1794) m Janet Burns [2]Archibald Cochrane, 9th Earl of Dundonald (1748-1831) m 3 times
John Cofran Cochran (1742-1806) m Joanna Gilman [2][3]etc.
Colonel James Cofran (1782-1861) m Ruth Hersey [3]
John Langdon Cofran (1810-1862) m Eliza A Penn [3]
Leroy Cofran (1844-) m Arabella Elmore [3]
Lee Roy Cofran (1882-1955) m Pearl May Kerns
Louis Lee Roy Cofran (1915-2001) m Virginia Breneman
LIVING Cofran (1945-)
LIVING Cofran (1973-)
  1. Crawfurd, George. The Peerage of Scotland. Edinburgh, 1716.
  2. Cutter, William Richard. New England Families, Genealogial and Memorial. New York: Lewis Historical Publishing Company, 1915.
  3. Cross, Lucy Rogers Hill. History of Northfield, New Hampshire, 1780-1905. Concord: Rumford Printing Co., 1905.