Gustav Emil Barthel

Norwegian priest

Welsh clergyman and author

English author and journalist

British surgeon, lawyer and author

German author

British biographer

Scottish merchant and writer on China

Bengali author and doctor

Welsh-American author and musician

French author

Welsh cleric and author

Independent minister, popular preacher, and author

Baptist minister, editor and author

Welsh Congregational minister and author

Welsh Calvinistic Methodist minister and author 

Botanist

American author, statistician and inventor

journalist and author