Claim: Prince Phetsarath, the 1st Prime Minister of Luang Phrabang in French Laos from August  21, 1941, to October  10, 1945,  appointed Sing Rattanasamai as the original Lao Issara defense minister, in  a movement where he started first as a member.
Evidence: Prince Phetsarath Ratanavongsa (Somdej Chao Maha Uparaja Petsaraj Ratanavongsa (Lao: ສົມເດັຈເຈົ້າ ມຫາ ອຸປຣາຊ ເພັຊຣາຊ ຣັຕນວົງສາ) (19 January 1890 – 14 October 1959) was the 1st Prime Minister of Luang Phrabang in French Laos from 21 August 1941 to 10 October 1945, and Head of State of Laos between 12 October 1945 and 4 April 1946. Lao Issara (1945-1949) He was subsequently appointed as the original Lao Issara defense minister by Prince Phetsarath.