Margaret Miller(born 18Dec1794) married Isaac Allen (born 18May1794) in 1817. They had 11 children: William, born 26Sep1818 James Miller, born 2Oct1821 in MO Andrew, born 7Feb1823 in MO Elizabeth C., born 2Aug1823 in MO John Ceton, born 7Oct1825 in MO Thomas Gartner, born 2Nov1827 in MO Rebecca, born 25Mar1829 in MO Mary Jane, born 10Dec1831 in MO Josiah Melissa Ann, born 23Feb1836 in MO Filena, born 11Mar1839.
From the notes and personal papers of Lois Allen Pierce, great-grandaughter of Isaac and Margaret... "Margaret and Isaac began the long journey west on May14, 1846, with California as their destination. Their children John, Thomas, Josiah, Andrew and Melissa Ann traveled with them. Andrew was married and his wife, Charity Minerva Kennedy, was included in this group. Isaac, Margaret, Thomas, Andrew, and Charity became seriously ill with "plains fever" and the wagon train was forced to stop at Fort Hall. When the wagon train moved on a few days later, Andrew was left behind, still too ill to travel. On August 27, 1846, Isaac died and was buried on the Sinks of the Humboldt in what is now Nevada. Two days later, on Aug. 29,1846, Andrew's wife Charity gave birth to a daughter. Charity died the next day and was buried in the location of what is now Reno, NV. The baby girl lived and was a year old when she and her father, Andrew, were reunited. Isaac Allen and Elam Brown were co-captains of the wagon train. At Isaac's death, Elam Brown was left with a tremendous responsibility. The wagon train went through what became known later as Donner's Pass- travelling ahead, by only a few hours, of the Donners. The scout (or guide) Elam Brown had hired to guide them to CA refused to stay with them unless they listened to him; he insisted that the wagon train had to go straight through the Pass because snow could come at any time and all would be lost. After the Donner Party's tragedy became known, the Allen-Brown company appreciated even more the wisdom and judgment of their guide."
James Miller Allen had travelled west ahead of his parents and settled in the Oregon Territory. His son Elam Ethan Allen was my great-grandfather.