Don't wander by here much anymore, since Dr. Henry Cathey spent a couple of years helping me research our mutual colonial PA ancestors.(His book is fantastic!)
The James Brandon you mentioned DID have a wife Mary but we've never known her name.
James' brother "Rowan John Sr." b.1691 married Mary Cathey b.c.1685, d/o John (JC 301) d.1742 Paxtang Twp, Lancaster-now-Dauphin Co, PA and wife Ann in Ireland.Widower remarried widow Elizabeth Lock after 1744, to Rowan Co, NC.
James' son "Huntington John" b.1715 m. Mary/Maley Cathey b.c.1718 at Old Swedes Church, Wilmington DE in 1739, then they (finished with their indentures, we surmise) went on to settle in Huntington Twp, York-now-Adams Co, PA to raise their large family alongside dad James Brandon and two brothers, George and William Brandon.A Priscilla Cathey, probably Maley's spinster sister, is mentioned in the estate reckoning of her son James, d. abt. 1779.
Maley Cathey Brandon's father may be George Cathey (RN18 in the Cathey database) and wife Jean, or he could be the John Cathey (31000) who died in PA in 1739 - his widow Elizabeth remarried a Hugh McHule/McCoole and a George "Branden" bought an item from this JC's estate.Dr. Cathey leans toward George, although Jean doesn't mention Maley in her NC will.
If the first printing isn't sold out, you should get Dr. Cathey's book, "Typical Scots-Irish Pioneers."Not a list of ancestors, but a total immersion in their life and times.His poetic narrative will save you years in the library history section!
Sally Brandon Coordinator, Lineage I group, Brandon DNA Project