This book traces the St. Clair family from Scotland to the New Hampshire frontier in 1650. John Sinkler was sold by his English captors during the English Civil War as an indentured servant. The first five generations of the St. Clair family in America was spent in New Hampshire. James Sinclair/St. Clair (1757-1836) fought with Whitcomb's Rangers and the Continental Army during the Revolutionary War. After the Revolutionary War, this branch of the family moved to New York State, Illinois, Iowa, Kansas , Oklahoma, and finally to the states of Washington and Oregon. Fairy St. Clair Gibson's family joined the Seventh-day Adventist Church in 1917.
Onsager, Lawrence W., "The St. Clair Family Story in America: John Sinkler (c1630-1700) to Fairy St. Clair Gibson" (2015). Faculty Publications. 27.