When John Henry Keiffer was born on 25 November 1877, in San Gregorio, San Mateo, California, United States, his father, George Fabyus L. Keiffer, was 41 and his mother, Mary A Rhoads, was 24. He married Jacinta Celeste Beatrice Henderson on 8 March 1920, in San Francisco, California, United States. They were the parents of at least 2 sons and 1 daughter. He lived in Hanford, Kings, California, United States in 1900 and Sanel Judicial Township, Mendocino, California, United States for about 10 years. He died on 1 July 1955, in Hopland, Mendocino, California, United States, at the age of 77, and was buried in Hopland, Mendocino, California, United States.
German: variant of Keifer and, in North America, (also) an altered form of this. The surname Keiffer is very rare in Germany.
Altered form of German Kieffer (see Kiefer ).
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