The story was that Maryland native James Rampley and family moved to western Illinois in 1847 from Ohio and were the "only ones in their family to move west." Turns out that was woefully incorrect. James' aunt and his sister settled two counties over. Three of his first cousins settled within ten miles of him, he purchased his first Illinois property from another first cousin, and his grandchild married the grandchild of another first cousin. And his wife's nephew settled within a few miles of James' family.
If you're stuck look at those neighbors, there may be relatives "openly hiding" right next door.