Hi Jolly or Hadji Ali (Arabic: حاج علي, romanized: Ḥājj ʿAlī; Turkish: Hacı Ali), also known as Philip Tedro (c. 1828 – December 16, 1902), was an Ottoman subject of Syrian and Greek parentage,[1] and in 1856 became one of the first camel drivers ever hired by the US Army to lead the camel driver experiment in the Southwest.

Ali was one of several men hired by the United States Army to introduce camels as beasts of burden to transport cargo across the "Great American Desert."

After successfully traveling round trip from Texas to California, the experiment failed, partly due to the problem that the Army's burros, horses, and mules feared the large animals, often panicking, and the tensions of the American Civil War led to Congress not approving more funds for the Corps.

He became an American citizen in 1880, and he used his birth name of Philip Tedro (sometimes spelled Teadrow) when he married Gertrudis Serna in Tucson, Arizona.

In 1935, Arizona Governor Benjamin Moeur dedicated a monument to Hadji Ali and the Camel Corps in the Quartzsite Cemetery.

The monument, located at his gravesite, is a pyramid built from local stones and topped with a copper camel, and is listed on the National Register of Historic Places.