She is the daughter of David and Mary.

It appears that there was an error in creating or copying the Council Point Emigrating Journal.  The Adams family members are listed individually, but Ellen's name does not appear on that record.  However there is a "Glen Adams," age 4 who is shown with the family.  We have not been able to locate anyone by the name of Glen associated with this family on FamilySearch.  It seems that "Ellen" was read or recorded incorrectly as "Glen."  Also, Ellen's name appears on the 1860 Utah census with her family, but Glen's name does not.