John Hills is the 4th great grandson of Asenath Haviland and John J. Slocum via their eldest daughter Sybil Slocum who married Asa B. Chapman, son of Stephen R. Chapman and Susannah Scribner Chapman. Asenath was the daughter of Garrison Haviland & Catherine Hartin; Garrison was the son of John Haviland and Sarah Garrison; John was the son of Adam Haviland & Mary Lott; Adam was the son of Benjamin Haviland & Abigail Mott; Benjamin was the son of William Haviland & Hannah Hicks.

John is particularly interested in any information about John J. Slocum, Catherine/Katherine Hartin/Harten, and Garrison Haviland's mother Sarah Garrison. John Slocum is believed to descend from the Quaker merchant family of Rhode Island. Census records show he was born in Saratoga County, NY but to which Slocum family? Catherine Hartin shows in various records as Katherine Harten. Josephine Frost's Haviland Genealogy shows Catherine as the daughter of Joseph Harten, but who was he? There are various claims that Sarah Garrison was part of the Dutch family Gerritsen/Gerritzen whose name was Anglicized.