Little is known about Hamoudis origins. Even his dates of birth and death are unknown. He is first known from the Carchemish excavations before the First World War, where he was in charge of organising and controlling the expedition workforce. Hamoudi also made himself indispensable in other ways, including administering medicine, and is credited with saving Lawrences life when he contracted typhoid fever. In June 1913, Lawrence and Woolley took Hamoudi to England, and they visited Oxford. The visit left a deep impression on Hamoudi.
In 1914, Woolley and Lawrence shut down the site at Carchemish and both men were soon involved in military concerns. Woolley returned to Carchemish in 191920, but was unable to resume excavation because of the political situation.
When Woolley was appointed Director of the joint British Museum/University of Pennsylvania Museum expedition to Ur in 1922, Hamoudi was appointed foreman. Described then as an elderly man, he brought with him two sons who worked under their father in organising the workforce. There are several photographs of Hamoudi at Ur, including some which show him in the same line as the Woolleys and the rest of the team. He was clearly a much-valued member of that team. At the start of every season, he would meet Woolley in Baghdad to discuss the ordering of stores of food and excavation essentials, then arrange for their transport to Ur. He also took instructions about work to be carried out to the expedition house before Woolley and his wife arrived.
Mallowan frequently mentioned Hamoudi in a diary kept during 1925 and 1926. In October 1926 he reports buying presents (sundry decorative articles) in Paris on his way to Ur for Hamoudi and his (by then) three sons working at Ur: Yahia, Ibrahim and Isa. Undergoing an emotional crisis after the death of one of his closest friends, Mallowan went to talk things over with Hamoudi, that tower of philosophy.
Hamoudi went on to be part of Mallowans digs in northern Syria at Chagar Bazar and Tell Brak. Agatha (Christie) related how he and two of his sons reported for duty at 5 a.m. while the Mallowans were still fast asleep in their hotel room. In 1949, when Mallowan was about to begin excavating at Nimrud, he found that Hamoudi had been awarded the Kings Medal for Service in the Cause of Freedom (KMS) for his services to British interests during the War. How long after this Hamoudi died is not recorded.
Katharine Woolley made a bronze head of Hamoudi, which was once in the collection of the Horniman Museum, but the Museum does not have it now, and have no recollection of what happened to it. It was much admired at the time and considered to have been a good likeness.