Henry E. Cooper
American politician (1857-1929)

Henry Ernest Cooper (August 28, 1857 – May 15, 1929) was an American lawyer who moved to the Kingdom of Hawaii and became prominent in Hawaiian politics in the 1890s. He formally deposed Queen Lili'uokalani of Hawaii in 1893, held various offices in the ensuing Provisional Government of Hawaii and Republic of Hawaii governments, and was the first United States Territory of Hawaii Attorney General, 1899–1900. He later became a circuit judge in Honolulu.
Early life
Cooper was born August 28, 1857, in New Albany, Indiana, to Harriet Augusta Cooper and William Giles Cooper, a lawyer from England. He was educated in public schools in Boston and received the LLB degree from the Boston University School of Law in 1878. He was admitted to the bar in Suffolk County, Massachusetts and practiced law there.
Cooper married Mary Ellen Porter October 2, 1883, in San Diego, California. In 1884 he named his estate Bonita Ranch, and the name was applied to the post office of Bonita, California.
There the Coopers had five children: Alfred Dykes Cooper (born 6/8/1886), Henry Ernest Cooper Jr. (born July 1887), Wallace McKay Cooper (August 1888 – April 1, 1966), Theodore Augustus Cooper (born October 28, 1889), and Alice Cooper (December 9, 1890 – 1978).
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The entry’s evidential value lies in the named roles, institutions and publications that can be tested against primary documentation. The source revision retrieved here is dated Sep 6, 2026. The linked authority identifier is Q5720600. VIAF identifies the subject as 103601732. The Library of Congress control number is no2009204507. 3 of 3 selected statements include explicit references; 0 carry qualifiers and 0 use preferred rank. The first chronological checks are 1857, 1929, 1893 and 1899.
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This entry incorporates text from “Henry E. Cooper” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.