May 24, 1764 Frederick Frederick County Maryland, USA
Son of Joseph Rohn Hartmann and Anna Magdalena Boesch Hartman Husband of Maria Margaretha Hauser (Margaret Hardman)
The number of children they had is in question. Those listed below show up in different combinations. Hanna(m. Jacob Warren Feltz) Johann Georg (Captain John Hardman) Joshua Joseph Michael(m. Elizabeth Wehaw) Mary Catherine or Catherine Mary (m. William Crum) Georg (m. Barbara Strichstroch) Heinrich(Major Henry Hardman)- never married Catherine (m. Johannes Meyers) Phillip? Nicholas?
Have seen Joseph's birthday listed as 14 Oct 1714 as well.