When John Henry Mount was born on 9 September 1864, in Monroe Township, Middlesex, New Jersey, United States, his father, Ezekial J Mount, was 25 and his mother, Sarah Jane Simonson, was 21. He married Lydia VanPelt Vanderhoof on 20 June 1888, in Monroe Township, Middlesex, New Jersey, United States. They were the parents of at least 1 daughter. He lived in Jamesburg, Middlesex, New Jersey, United States in 1880 and Newark Township, Essex, New Jersey, United States for about 20 years. He died on 14 January 1944, in Township of South Orange Village, Essex, New Jersey, United States, at the age of 79.
English (Kent and Lancashire): either a topographic name from Middle English mont, munt ‘mount, hill’, or a habitational name from any of the many minor places so called, such as Mount in Elham (Kent).