- Birth Date
- 25 February 1848
- Death Date
- 17 January 1890
More research is needed concerning Ellen's date of birth as family tradition from Family Tree at FamilySearch.org and data from Ellen's headstone conflict. Data from census records indicate that Ellen was born sometime between 1847 and 1849. A possible entry in "England and Wales, Civil Registration Birth Index," was found for Ellen which indicates that she was born sometime between January and March 1848.
- Age at Departure: 18
- 1851 England and Wales Census.
- 1870 United States Federal Census
- Chipman, William H., Notebook, 1866.
- "Departed in Peace: The Last Sad Rites Over the Remains of Sister Ellen Halladay," Utah Enquirer, 21 January 1890, 4.
- England & Wales, Civil Registration Birth Index, 1837-1915.
- Find a Grave (Website)
- New York Passenger Lists, 1820-1957.
- "Passenger List: of Cap. W. Chipman's Train," Deseret News, 26 September 1866, 5.
- Perpetual Emigrating Fund, Financial Accounts 1849-1886, Ledger B, p. 323.