July 6, 1846, Brooklyn, New York.
June 12, 1919, Los Angeles, California.
Forest Lawn Memorial Park, Glendale, California.
John was the son of Oliver Ketcham and Sarah T. Sammis, and husband of Mary L. Sammis.
He moved to Logansport, Indiana, around 1869, where he was a successful businessman and later a secretary for the Young Men’s Christian Association.
Feeling a call to the ministry, he attended McCormick Theological Seminary, Chicago, Illinois, and Lane Theological Seminary, Cincinnati, Ohio. He was ordained a Presbyterian minister in 1880, and served in Glidden, Iowa; Indianapolis, Indiana; Grandhaven, Michigan; Red Wing, Minnesota; and Sullivan, Indiana.
In 1901, he moved to California, where he taught at the Bible Institute of Los Angeles for the rest of his career.