Chronicling America, Library of Congress

Referenties ^{Permanente link naar dit onderdeel.}

1. "The Chicago Tribune". Chicago, The Chicago Tribune, 1879-03-31, page 7, column 2.
2. "The Detroit Free Press". Detroit, The Detroit Free Press, 1879-04-08, page 8, column 3.
3. "The Chicago Tribune". Chicago, The Chicago Tribune, 1877-03-29, page 2, column 4.
4. "The Chicago Tribune". Chicago, The Chicago Tribune, 1876-04-04, page 1, column 7.
5. "The Chicago Tribune". Chicago, The Chicago Tribune, 1880-04-06, page 2, column 6.
6. "The Detroit Free Press". Detroit, The Detroit Free Press, 1880-04-06, page 8, column 3.
7. "The Telegram Herald". Grand Rapids, MI, The Telegram Herald, 1891-11-06, page 3.
8. "Grand Rapids Herald". Grand Rapids, Grand Rapids Herald, 1892-01-16, page 3, column 1.
9. "Grand Rapids Herald". Grand Rapids, Grand Rapids Herald, 1892-02-21, page 7, column 3.
10. "Grand Rapids Herald". Grand Rapids, Grand Rapids Herald, 1892-10-17, page 2, column 4.
11. "Grand Rapids Herald". Grand Rapids, Grand Rapids Herald, 1893-01-31, page 5, column 1.
12. Michigan Department of State. "Michigan Department of State, Division of Vital Statistics". Michigan, Death record for David Lankester.