Missionary and explorer in Africa
Sancreed, St Buryan, Cornwall, United Kingdom
Basako, Kingdom of Kongo
|Spouse(s)||Mary Hawkes (1877†)
Rosana Patience Edgerley (1855-1928)
|Children||Seven children: Patience Elizabeth Grenfell, Caroline Mary Grenfell, Unknown child, Dorothy Grenfell, Gertrude Grenfell, Unknown child, Grace Isabel Grenfell Quallo|
Early years 
Grenfell was born at Sancreed, St Buryan, near Penzance, Cornwall. In 1875 he went as a Baptist missionary to Cameroon, West Africa, with Alfred Saker (1814–80), and thereafter did some exceedingly important work in exploring little-known rivers of the Congo Basin. In 1877 he removed to Victoria and explored the Wouri River and in the following year he ascended Mongo ma Loba Mountain.
Congo explorations 
In 1881, cooperating with the Rev. T. J. Comber and others, he established a chain of missions at Musuko, Vivi, Isangila, Manyanga, and other points, and in 1884, in a small steam vessel, he explored the Congo to the equator. He established headquarters at Arthington, near Leopoldville, in 1884, and launched on Stanley Pool a river steam vessel, the Peace, in which he explored the Kiva, the Kwango, and the Kasai rivers, discovered the Ruki, or Black River, and ascended the Mubangi for 200 miles (320 km) to Grenfell Falls, at lat. 4° 40' N. In 1885 he explored with Curt von François other tributaries of the Congo, notably the Busira, along which he found Pygmy Batwa peoples. In the following year he examined the Kasai, the Sankuru, and the Luebo and Lulua, and made careful records of the Bakuba and Bakete tribes. He was awarded the medal of the Royal Geographical Society for his map of the Congo Basin.
In 1891 he was appointed a plenipotentiary for Belgium to delimit the boundary line between the Belgian and Portuguese possessions along the Luanda frontier. He protested to King Leopold against Belgian maladministration in the Congo Free State, but with little effect. From 1893 to 1900 Grenfell remained chiefly at Bolobo on the Congo, where a strong mission station was established. After a visit to England in 1900, he started for a systematic exploration of the Aruwimi River and by November 1902 had reached Mawambi, about eighty miles from the western extreme of the Uganda protectorate.
Last years 
Between 1903 and 1906 Grenfell was busy with a new station at Yalemba, fifteen miles east of the confluence of the Aruwimi with the Congo. Meanwhile he found difficulty in obtaining building sites from the Congo Free State, which accorded them freely to Roman Catholics. He grew convinced of the evil character of Belgian administration, in which he had previously trusted. In 1903 King Leopold despatched at Grenfell's entreaty a commission of inquiry, before which he gave evidence, but its report gave him little satisfaction. Grenfell died after a bad attack of blackwater fever at Basoko on 1 July 1906.
- Life on the Congo. By W[illiam] Holman Bentley; with an introd. by George Grenfell. London: The Religious tract society, 1887.
- The upper Congo. Geographical Journal, Bd. 20 (1902)
- Sir Harry Johnston: George Grenfell and the Congo. 2 Vol., London: Hutchinson, 1908. (A history and description of the Congo Independent State and adjoining districts of Congoland, together with some account of the native peoples and their languages, the fauna and flora; and similar notes on the Cameroons and the island of Fernando Pô, the whole founded on the diaries and researches of the late Rev. George Grenfell, B.M.S., F.R.G.S.; and on the records of the British Baptist Missionary Society; and on additional information contributed by the author, by the Rev. Lawson Forfeitt, Mr. Emil Torday, and others). Reprint, New York: Kraus, 19XX.
- George Hawker: The life of George Grenfell, Congo missionary and explorer. London: The Religious tract society, 1909.
- Shirley J. Dickins: Grenfell of the Congo. Pioneer, missionary, and explorer. London: Sunday School Union, 1910.
- Harry Lathey Hemmens: George Grenfell: pioneer in Congo. London: Student Christian Movement, 1927.
- This article incorporates text from a publication now in the public domain: Gilman, D. C.; Thurston, H. T.; Moore, F., eds. (1905). "article name needed". New International Encyclopedia (1st ed.). New York: Dodd, Mead.