A bond for the marriage of John Cowles and Dursilla Trible was taken out 26 August 1834. [Eva Eubank Wilkerson, Index to Marriages of Old Rappahannock and Essex Counties, 1655–1900, Baltimore: Genealogical Publishing Company, 1988, page 235, citing Essex County, Virginia, Marriage Register I, page 250.]

About 1847, orators and oratrices Peter S. Trible and John Cowles trustees in a certain deed of trust of 23 September 1846 from George Trible and the said Peter Trible in his own right, the said John Cowles and Drucilla his wife, _____ Trowbridge and Elizabeth his wife, Fountain Wood and Matilda his wife, and George Trible Jr filed a complaint to the Chancery Court. That George Trible had conveyed his estate to trustees to keep the estate together during his life and so his children might enjoy the same after his decease. George Trible has died leaving children Peter S. Trible, Colleen Trible, Drucilla Cowles, Elizabeth Trowbridge, Matilda Wood, George Trible, Henry B. Trible, “Arthur Trible a lunatic in the Assylum at Williamsburg whose portion of the said deed is conveyed also to John Cowles in trust to be delivered to the said Arthur whenever he shall be mentally capable of enjoying it” and Martha Elizabeth Trible, a granddaughter, daughter of a son John F. Trible deceased. [Essex County, Virginia, Box Chancery No. 41, item 41-B-1.]