Jack was son of John Ressler and brother to Frank Ressler, both of whom were covered in detail.
He was married to Gertie Flick and they had one son, Freddy. Then he was married to Mary Dusbabek, they had Allen, Manley, Mrs. Melvin Johnson (Irene), Lawrence, Earl and Lillian.
Jack farmed just east of Jessie until he purchased hotel in Jessie. Later he had grocery store and he converted this to Hardware, which he sold to Graham McCulloch. Graham sold it to Edward Ressler, nephew of John's in 1940. In 1938 he moved to Fargo where he operated a family grocery.
Source: Griggs County History 1879 - 1976 Page 462