[1] He graduated from Cornell Law School in 1890 and moved to Caldwell, where he became a successful attorney and an active member of the local Presbyterian Church.

In 1891, Morrison was influential in founding the College of Idaho and served as an original faculty member, teaching English and history.

During his term in office, state examinations of weights and measures were initiated, a pure food law was enacted, and a reform school at St. Anthony was founded.

[2] Morrison sought reelection in 1904, but Republicans declined to nominate him for a second term, instead supporting Frank R. Gooding.

Morrison died December 20, 1915, and is interred at the Morris Hill Cemetery, Boise, Ada County, Idaho US.