[3] Musser was not baptized a member of The Church of Jesus Christ of Latter-day Saints until he arrived at Council Bluffs, Iowa in 1851.

[4] On arriving in Utah Territory in 1851 as part of the Easton Kelsey Company,[5] Musser became a clerk in the tithing office.

R. Lanier Britsch's book Nothing More Heroic[7] on this early LDS Church mission in India was written as if narrated by Musser.

Musser served as Fish and Game Commissioner of Utah Territory from the late 1870s through the early 1890s.

[3] He authored "To The Press Of The United States" (Philadelphia, May 1877), a press release defending the faith in response to charges that the Latter-day Saints are a "blood-thirsty people" in newspaper coverage of the trial and execution of John D. Lee for his role in the Mountain Meadows Massacre.

Musser also married Mary Elizabeth White in 1864, Belinda Marden Pratt in 1872 and Anna Seegmiller in 1874.