Young, Journal, 8 Apr. 1840, p. [24]; Richards, Journal, 9 Apr. 1840.
Historian’s Office. “History of Brigham Young.” In Manuscript History of Brigham Young, ca. 1856–1860, vol. 1, pp. 1–104. CHL. CR 100 150, box 1, fd. 1.
Richards, Willard. Journals, 1836–1853. Willard Richards, Papers, 1821–1854. CHL. MS 1490, boxes 1–2.
See 9 Apr. 1840 entry in History Draft.
Richard M. Young, Washington DC, to Elias Higbee, 9 Apr. 1840, in JS Letterbook 2, pp. 133–135.
JS Letterbook 2 / Smith, Joseph. “Copies of Letters, &c. &c.,” 1839–1843. Joseph Smith Collection, 1827–1846. CHL. MS 155, box 2, fd. 2.