Alexander Pierce Trimble was the son of William and Ann Nancy Carter Trimble. Alexander married Polly A. Knapp May 7,1846 in Bloomfield, Walworth County, Wis. The Trimbles were Scots-Irish Presbyterians. Alexander and his brothers were trailblazers in the Big Woods of Wisconsin and Iowa when they were just inhabited by Indians. In 1846 Alexanders brother Edward Trimble, started on the Oregon Trail but was killed by Indians on the way there. In 1853, Alexander and his wife Polly Ann Knapp Trimble started on the Oregon Trail May 1,1853 from Westport, Mo. They arrived in the Williamette Valley of Oregon in the last week of August. Their land was near Halsey, in Linn County. In 1860 Alexanders brother, Hirams widow, Abagel Payne Utter and her husband, Elijah Utter left for Oregon with their combined families of eleven children. Just as they got to the Snake River, they were attacked and massacred by Indians and white men dressed as Indians. The only survivior of their family was 13 year old Emeline L. Trimble. She lived with Alexanders family until she married. In about 1876 Alexander and his family were again in a covered wagon. This time they moved to Clay Co., Texas and by 1900, Collingsworth Co, Texas.

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