Born in Bavaria, Germany on November 16, 1816, Kraemer emigrated to the United States in 1838 and settled near Belleville, Illinois. In 1865, he traveled to Southern California and purchased a 3,900 acres (16 km2) parcel of land and an adobe house from Juan Pacifico Ontiveros' Rancho San Juan Cajon de Santa Ana. Two years later, he traveled to Illinois and returned with his family. He operated the ranch until his death on February 6, 1882. In addition, Kraemer donated the land for a school and established the Cajon School District in 1875.
- Armor, Samuel (1921). History of Orange County, California: With Biographical Sketches. Los Angeles: Historic Record Company. p. 230. Retrieved October 3, 2013.
- Faessel, Stephen J. (2006). Early Anaheim. Arcadia Publishing. p. 69. ISBN 0738530697. Retrieved October 3, 2013.
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