The following is from the Genealogy Database of Bryon P Johnson:
The earliest of the Workman line may have been Nicolas Workman born in England in 1543. He married Julyann Gyllian probably in Holland.
Note: The connection between Nicholas and the John William, shown in this database as the next generation, is unlikely at best. Nicholas did have a son named John, but the later John William would more likely be a grandson or great-grandson to Nicholas. I have chosen to leave them linked in the database, for the time being, as a reminder of the possible connection.
Little is known of John William Workman (the Dutch form of his name being Jans William Woertman ) except that he was married and had a family. It is believed that he was an emigrant from England, coming to Holland as a result of religious persecution during the time of the Puritan upheavals. Derick Jansen Woertman, son of John William, came to New York in about 1660 when it was still under Dutch control.
The Workman descendants moved into Somerset, New Jersey by the early 1700s and Allegany, Maryland by the late 1700s. It’s probably during this time that the Workman and Bilyeu families got to know each other and started an intermingling that spanned the Continent and the next 200 years.
Jacob Workman, a great-grandson of Derick Jansen Woertman, left Maryland about 1800 and moved to Bourbon, Kentucky where he died in 1821. Jacob’s son, David Workman, married Lydia Bilyeu about 1823 in Kentucky and after the marriage they moved to Overton, Tennessee. In 1828/29 they moved again to Sangamon, Illinois and settled on Lick Creek.
David and Lydia were only part of the extended family that moved into Sangamon, and Christian County, Illinois. There are many instances of Bilyeu to Workman marriages in the Illinois contingent, much to the dismay of my genealogy software.
As with the Bilyeu families, not all of them moved into Sangamon and Christian Counties. Many stayed in Tennessee while some moved into other states and at least one family group led by John Workman (a brother of the David mentioned above) and two of his sons (Jacob Lindsey Workman, Andrew Jackson Workman) joined the Mormons in Nauvoo, Hancock, Illinois and eventually went to Utah.