It has sometimes been stated that George Croghan and William Trent were brothers-in-law. How they became so is not clear. William Trent's only sister, Mary, married Nathaniel French, of Philadelphia. Trent himself married Sarah Wilkins, possibly a daughter of one of the Indian Traders of that name. Croghan 's nephew, it will be remembered, was Doctor John Connelly, the Loyalist. Connolly was the son of John Connelly, Sr., a native of Ireland, and of Susanna Howard, sister of Gordon Howard, one of the early Indian Traders of Lancaster County. She first married James Patterson, the Trader, and after his death. Dr. Thomas Ewing, of Lancaster. John Connolly, Sr., was her third husband. Doctor Connolly, their son, married Susanna Semple, daughter of Samuel Semple, the innkeeper of Fort Pitt, who furnished Washington such good entertainment in 1770. If Croghan's wife was a Wilkins, and sister to William Trent's wife, it is possible she also may have been a sister to Samuel Semple's wife, the mother of Susanna Connolly; and this would have made Connolly Croghan's nephew, by marriage. The name of Croghan's own daughter, as shown by his will, was Susanna; which was also the Christian name of Connolly's mother, as well as that of his wife. But it is difficult to see how Croghan could have been a brother-in-law to Trent, who married Sarah Wilkins, and also to John Connolly, Sr., who married Susanna Howard, the widow of Doctor Ewing, unless, indeed, Sarah Wilkins and Susanna Howard may have been half-sisters, and one of them Croghan's wife's sister.
