Dan Beach Bradley (July 18, 1804 – June 23, 1873) was an American Protestant missionary to Siam from 1835 until his death.

After a year of studying, Bradley attended lectures at Harvard University in 1830 before taking another break to earn money to continue his education.

Jane, however, was only 16 years old and was not in a position to marry Bradley and Goodyear had no desire to serve as a missionary in Asia.

After a brief mail courtship, on 5 June 1834 Bradley married Emilie Royce before the couple set sail for Siam.

Due to monsoons, Bradley and his wife stayed in an unoccupied London Missionary Society home for six months, until the storms finally passed.

Bradley and his wife arrived in Siam on 18 July 1835 after an encounter with Malay pirates that left goods stolen and four crew members dead.

[1] During his first few years in Thailand, Bradley suffered from chronic diarrhea, a sickness that he said had to happen initially in order to survive.

He established a daily routine of cold baths, plain food, and total abstinence from intoxicating beverages.

[citation needed] On 4 December 1847, Bradley resigned from the ABCFM due to his disagreement with the organization on the doctrine of Christian perfectionism.

[1] The AMA gave Bradley limited resources for mission work, forcing him to focus on making money.

Bradley criticized Buddhism and numerous practices that he saw in Thai culture such as drunkenness, slavery, gambling, and polygamy.

Much of the money made by Bradley during his time in Siam was from performing medical services for the Siamese and missionaries.

Bradley is credited with performing the first surgery in Siam, removing a cancerous tumor from the body of a slave.

Bradley taught royal doctors how to perform the same practices as he did and he wrote numerous books for the purposes of the court.

Upon entering the throne room and taking a seat, Chutamani sat on the same level as Bradley, signifying equality.

With royal approval, Bradley founded the first newspaper in Siam, The Bangkok Recorder which was published monthly from 1844-1845 and 1865-1867.

Besides bringing the printing press to Siam, starting the first newspaper, and writing many books, Bradley is credited with translating the Old Testament into Siamese.

[citation needed] Bradley was an advocate for Siam's equality and translated French policies into Siamese.