- Birth Date
- 26 September 1847
- Death Date
- 10 October 1914
William Sneath Harker
His obituary indicates that he was born as the company was camped in Echo Canyon, near Park City, and just prior to their arrival in the Valley.
- Age at Departure: Infant
- Born en Route
- 1850 Utah Census, Great Salt Lake, Utah Territory.
- George Whitaker autobiography, undated, 31-37.
- Joseph Harker reminiscences and journal, 1855-1895, 42.
- Journal History of The Church of Jesus Christ of Latter-day Saints, 21 June 1847, 19.
- Utah, Territorial Militia Records, 1849-1877.
- West Jordan Ward, Record of members collection, 1836-1970.
- "William Harker Dies of Pneumonia," Salt Lake Tribune, 11 October 1914, 28.