William Keolaloa Sumner

William Keolaloa Kahānui Sumner, Jr. (c. 1816 – May 25, 1885) was a high chief of the Kingdom of Hawaii through his mother's family; his father was an English captain from Northampton.

After Manailua's death, William married Mauli Tehuiarii; their daughter was Elizabeth Keawepoʻoʻole Sumner (1850–1911).

[9][10][4][11][12] Sumner and his brother John bought the land of Mōkapu from High Chief Abner Pākī in 1856.

This land passed to his brother after William's death, and then to their sister Maria and her children from her second marriage with Robert Grimes Davis.

[13] Sumner was elected to the House of Representative for Oahu with a seat for the regular session of the Legislature of 1855 but, according to American Commissioner to Hawaii David Lawrence Gregg, he did not appear to serve for an unknown reason.

[18] On January 16, 1864, he was commissioned first lieutenant of the 1st Company of the Yeomanry, a volunteer army regiment in the military of Hawaii.

[19] The legislature of the kingdom in 1865 had enacted a law for the prevention of leprosy, which required those with severe cases to be quarantined at the colony on Molokaʻi.

Later that same year, the first luna (superintendent) William P. Ragsdale died; he was a highly popular part-Hawaiian attorney who had also served the government as an interpreter.

He demonstrated religious discrimination, harshly treating a Hawaiian Protestant minister J. K. Kahuila, whom he judged as too independent.