Clara H. Hazelrigg (née, Espy; pen name, C. H. H.; November 23, 1859 – 1937) was an American author, educator and reformer.

[4] In 1883,[2] or 1884,[4] they moved to Kansas and located in Butler County, where Hazelrigg resumed her work as a teacher.

[4] Hazelrigg attended business college at Emporia, Kansas and was elected superintendent of the Butler County schools.

She was a department editor for a prominent Chicago paper, and was a regular contributor to the Topeka Lancet.

[6] As an evangelist, she devoted much time to act church work, and covered eight states in the West and Midwest.

"[8] Hazelrigg spoke at the national General Missionary Convention held October 10–17, 1901 in Minneapolis, Minnesota.

[11] She was an active organizer for the Christian Woman's Board of Missions and served as its Kansas secretary.

[7] In 1897, she reported traveling 9,000 miles, speaking before state, Sunday School, and Christian Endeavor conventions.